Digital device and method of processing screensaver thereof

ABSTRACT

A digital device and a method of processing screensaver application in the digital device are disclosed. The digital device includes a manager to manage a display window of the digital device and to generate and to transmit a plurality of status data of the digital device to a controller, and the controller to receive a first signal from a first application requesting registration as an application voter, to transmit a second signal requesting a confirmation related to execute a second application to the first application when first status data is received from a service interface, to receive a response to the second signal from the first application, and to execute the second application to enter a screensaver mode based on the received response.

This application claims the benefit of U.S. Provisional Application No.61/945,097, filed on Feb. 26, 2014, and Korean Patent Application No.10-2014-0090368 filed on Jul. 17, 2014 in Korea, which are herebyincorporated by references.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a digital device and, moreparticularly, to a digital device for processing a screensaver and amethod of processing a screensaver.

2. Discussion of the Related Art

Subsequent to stationary devices such as a personal computer (PC) or atelevision (TV), mobile devices such as a smartphone or a tablet PC havebeen remarkably developed. Although stationary devices and mobiledevices have been independently developed in respective areas, recently,the areas of the stationary devices and the mobile devices are becomingambiguous according to a boom in digital convergence.

In addition, with development and environmental changes of such digitaldevice development, requirements of users have been also graduallyincreased and diversified and thus requests to support various high-endservices or applications have been increased.

Due to such environmental changes of the digital device, panel burn-incan occur in a device in association with provision of varioushigh-quality services or applications. To solve such bur-in, the deviceuses a screensaver. However, even when the screensaver is used, if thedevice supports multitasking of high-end services or applications,according to conventional methods, the screensaver does not operateaccording to the statuses of the services or applications, the status ofthe device or user's intention, thereby obstructing use of the device bya user and inconveniencing the user.

SUMMARY OF THE INVENTION

Accordingly, embodiments of the present invention are directed to adigital device and a method of processing screensaver thereof thatsubstantially obviate one or more problems due to limitations anddisadvantages of the related art.

An object of the present invention devised to solve the problem lies ina method of adaptively controlling or processing a screensaver inconsideration of a status of a service or application of a digitaldevice.

Another object of the present invention devised to solve the problemlies in a method of adaptively controlling or processing a screensaverif a digital device supports multitasking.

A further object of the present invention devised to solve the problemlies in adaptive processing of a screensaver according to a status of adigital device based on burn- in, power consumption reduction and user'sintention.

The technical problems solved by the present invention are not limitedto the above technical problems and other technical problems which arenot described herein will become apparent to those skilled in the artfrom the following description.

Additional advantages, objects, and features of the invention will beset forth in the disclosure herein as well as the accompanying drawings.Such aspects can also be appreciated by those skilled in the art basedon the disclosure herein.

The object of the present invention can be achieved by providing amethod of controlling a digital device includes receiving, by acontroller, a first signal from a first application requestingregistration as an application voter, transmitting, by the controller, asecond signal requesting a confirmation related to execute a secondapplication to the first application when first status data is receivedfrom a service interface, receiving, by the controller, a response tothe second signal from the first application, and executing, by thecontroller, the second application to enter a screensaver mode based onthe received response.

In another aspect of the present invention, provided herein is a digitaldevice includes a manager to manage a display window of the digitaldevice and to generate and to transmit a plurality of status data of thedigital device to a controller, and the controller to receive a firstsignal from a first application requesting registration as anapplication voter, to transmit a second signal requesting a confirmationrelated to execute a second application to the first application whenfirst status data is received from a service interface, to receive aresponse to the second signal from the first application, and to executethe second application to enter a screensaver mode based on the receivedresponse.

The technical solutions which can be obtained by the present inventionare not limited to the above-described technical solutions, and othertechnical solutions which are not described herein will be understood byone of ordinary skill in the art based on the detailed description ofthe present invention.

According to one of various embodiments of the present invention, it ispossible to provide a method of adaptively controlling or processing ascreensaver in consideration of a status of a service or application ofa digital device. According to another embodiment of the presentinvention, it is possible to provide a method of adaptively controllingor processing a screensaver if a digital device supports multitasking.According to another embodiment of the present invention, it is possibleto adaptively process a screensaver according to a status of a digitaldevice based on burn-in, power consumption reduction and user'sintention. Thus, it is possible to provide convenience to users and toimprove product satisfaction.

Effects obtainable from the present invention can be non-limited by theabove mentioned effect. And, other unmentioned effects can be clearlyunderstood from the following description by those having ordinary skillin the technical field to which the present invention pertains.

It is to be understood that both the foregoing general description andthe following detailed description of the present invention areexemplary and explanatory and are intended to provide furtherexplanation of the invention as claimed.

Further scope of applicability of the present invention will becomeapparent from the detailed description given hereinafter. However, itshould be understood that the detailed description and specificexamples, while indicating preferred embodiments of the invention, aregiven by illustration only, since various changes and modificationswithin the spirit and scope of the invention will become apparent tothose skilled in the art from this detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the invention and are incorporated in and constitute apart of this application, illustrate embodiment(s) of the invention andtogether with the description serve to explain the principle of theinvention. The above and other aspects, features, and advantages of thepresent invention will become more apparent upon consideration of thefollowing description of preferred embodiments, taken in conjunctionwith the accompanying drawing figures. In the drawings:

FIG. 1 is a schematic diagram illustrating a service system including adigital device according to one embodiment of the present invention;

FIG. 2 is a block diagram showing a digital device according to oneembodiment of the present invention;

FIG. 3 is a block diagram showing the configuration of a digital deviceaccording to another embodiment of the present invention;

FIG. 4 is a diagram showing a digital device according to anotherembodiment of the present invention;

FIG. 5 is a block diagram showing the detailed configuration of each ofcontrollers of FIGS. 2 to 4 according to one embodiment of the presentinvention;

FIG. 6 is a diagram showing an input unit connected to each of thedigital devices of FIGS. 2 to 4 according to one embodiment of thepresent invention;

FIG. 7 is a diagram illustrating webOS architecture according to oneembodiment of the present invention;

FIG. 8 is a diagram illustrating architecture of a webOS deviceaccording to one embodiment of the present invention;

FIG. 9 is a diagram illustrating a graphic composition flow in a webOSdevice according to one embodiment of the present invention;

FIG. 10 is a diagram illustrating a media server according to oneembodiment of the present invention;

FIG. 11 is a block diagram showing the configuration of a media serveraccording to one embodiment of the present invention;

FIG. 12 is a diagram illustrating a relationship between a media serverand a TV service according to one embodiment of the present invention;

FIG. 13 is a diagram illustrating a screen server launch conditionaccording to one embodiment of the present invention;

FIG. 14 is a diagram illustrating an operation structure of ascreensaver according to one embodiment of the present invention;

FIG. 15 is a diagram illustrating fullscreen screensaver and PIGscreensaver operation screens according to one embodiment of the presentinvention;

FIG. 16 is a block diagram illustrating a screensaver processing methodaccording to one embodiment of the present invention;

FIG. 17 is a diagram illustrating a video object related to screensaverprocessing according to one embodiment of the present invention;

FIG. 18 is a block diagram showing the screensaver processingconfiguration including the components shown in FIG. 16;

FIG. 19 is a diagram illustrating the screensaver processingconfiguration according to one embodiment of the present invention; and

FIG. 20 is a flowchart illustrating a screensaver processing methodaccording to one embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Description will now be given in detail according to exemplaryembodiments disclosed herein, with reference to the accompanyingdrawings. For the sake of brief description with reference to thedrawings, the same or equivalent components can be provided with thesame reference numbers, and description thereof will not be repeated.

In general, a suffix such as “module” and “unit” can be used to refer toelements or components. Use of such a suffix herein is merely intendedto facilitate description of the specification, and the suffix itself isnot intended to give any special meaning or function. Meanwhile, such anordinal number as ‘first-’, ‘second’, ‘third’ and the like can have ameaning of an order. Yet, the terminologies can be used for the purposeof distinguishing one component from another component capable of beingoverlapped with each other. In the present disclosure, that which iswell-known to one of ordinary skill in the relevant art has generallybeen omitted for the sake of brevity.

The accompanying drawings are used to help easily understand varioustechnical features and it should be understood that the embodimentspresented herein are not limited by the accompanying drawings.

As such, the present disclosure should be construed to extend to anyalterations, equivalents and substitutes in addition to those which areparticularly set out in the accompanying drawings.

A digital device according to the present invention as set forth hereincan be any device that can handle any one of transmitting, receiving,handling and outputting data, content, servicer, application, and soforth. The digital device can be connected to other digital devicesthrough wired network or wireless network, paired or connected toexternal server, and through the connections, the digital device cantransmit and receive the prescribed data. Examples of the digital devicecan include standing devices such as a network TV, a Hybrid BroadcastBroadband TV (HBBTV), a smart TV, Internet Protocol TV (IPTV), andpersonal computer (PC), or mobile/handheld devices such as a PersonalDigital Assistant (PDA), smart phone, tablet PC, or Notebook computer.For convenience of description, in this specification, Digital TV isused in FIG. 2 and mobile device is used in FIG. 3 depicting the digitaldevice. Further, the digital device in this specification can bereferred to configuration having only a panel, set-top box (STB), or aset including the entire system.

Moreover, the wired or wireless network described in this specificationcan refer to various pairing method, standard telecommunication networkprotocol methods supported for transmitting and receiving data betweendigital devices or between digital device and external server. The wiredor wireless network also includes various telecommunication networkprotocols supported now as well as in the future. Examples of the wiredor wireless network include wired network supported by varioustelecommunication standard such as Universal Serial Bus (USB), CompositeVideo Banking Sync (CVBS), Component, S-Video (analog), Digital VisualInterface (DVI), High Definition Multimedia Interface (HDMI), RGB, D-SUBand so forth, and wireless network supported by various standardsincluding Bluetooth, Radio Frequency Identification (RFID), infraredData Association (IrDA), Ultra Wideband (UWB), ZigBee, Digital LivingNetwork Alliance (DLNA), Wireless LAN (WLAN) (Wi-Fi), Wireless broadband(Wibro), World Interoperability for Microwave Access (Wimax), High SpeedDownlink Packet (HSDPA), Long Term Evolution/LTE-Advanced (LTE/LTE-A),Wi-Fi direct, and so forth.

In addition, when this specification refers simply to the digitaldevice, it can mean a standing device or a mobile device depending onthe context, and when it is not referred to a specific device, thedigital device referred in this specification refers to both standingand mobile device.

Meanwhile, the digital device can perform intelligent functions such asreceiving broadcasting program, operating computer functions, andsupporting at least one external input, and by being connected throughthe network wired or wirelessly, the digital device can support e-mailfunctions, web browsing functions, banking, gaming, and executingapplications. The digital device can further include an interface forany one of input or control means (hereinafter referred as “inputmeans”) supporting handwriting input, touch-screen, and space remotecontrol.

Furthermore, the digital device can use standard operating system (OS),however, the digital device described in this specification and theembodiments, uses Web OS. Therefore, the digital device can performfunctions such as adding, deleting, amending, and updating the variousservices and applications for standard universal OS kernel or Linuxkernel in order to construct a more user-friendly environment.

When the digital device, described above, receives and handles externalinput, the external input includes external input devices describedabove, meaning all input means or digital devices, capable oftransmitting and receiving data through wired or wireless networkconnected to and from the digital device. For example, the externalinput includes High Definition Multimedia Interface (HDMI), game devicessuch as playstation or X-Box, smart phone, tablet PC, printing devicesuch as pocket photo, digital devices such as smart TV and blue-raydevice.

The “server” referred to as in this application, includes digital deviceor system capable of transmitting and receiving data to and from client,and can also be referred to as a processor. For example, the server canbe servers providing services such as portal server providing web page,web content or web service, advertising server providing advertisingdata, content server, Social Network Service (SNS) server providing SNSservice, service server providing service to manufacturer, MultichannelVideo Programming Distributor (MVPD) providing Vide on Demand orstreaming service, and service server providing pay services.

In this application, when application is described for the convenienceof explanation, the meaning of application in the context can includeservices as well as applications.

In the following description, various embodiments according to thepresent invention are explained with reference to attached drawings.

FIG. 1 illustrates a broadcast system including a digital receiveraccording to an embodiment of the present invention.

Referring to FIG. 1, examples of a broadcast system comprising a digitalreceiver can include a content provider (CP) 10, a service provider (SP)20, a network provider (NP) 30, and a home network end user (HNED)(Customer) 40. The HNED 40 includes a client 100, that is, a digitalreceiver.

The CP 10 is an entity that produces content. Referring to FIG. 1, theCP 10 can include a 1st or 2nd terrestrial broadcaster, a cable systemoperator (SO), a multiple system operator (MSO), a satellitebroadcaster, various Internet broadcasters, private content providers(CPs), etc. The content can include applications as well as broadcastcontent.

The SP 20 packetizes content provided by the CP 10. Referring to FIG. 1,the SP 20 packetizes content provided by the CP 10 into one or moreservices available for users.

The SP 20 can provide services to the client 100 in a uni-cast ormulti-cast manner.

The CP 10 and the SP 20 can be configured in the form of one entity. Forexample, the CP 10 can function as the SP 20 by producing content anddirectly packetizing the produced content into services, and vice versa.

The NP 30 can provide a network environment for data exchange betweenthe server 10 and/or 20 and the client 100. The NP 30 supportswired/wireless communication protocols and constructs environmentstherefor. In addition, the NP 30 can provide a cloud environment.

The client 100 can construct a home network and transmit/receive data.

The server can use and request a content protection means such asconditional access. In this case, the client 100 can use a means such asa cable card or downloadable CAS (DCAS), which corresponds to thecontent protection means of the server.

In addition, the client 100 can use an interactive service through anetwork. In this case, the client 100 can directly serve as the CP 10and/or the SP 20 in a relationship with another client or indirectlyfunction as a server of the other client.

Each of the CP 10, SP 20 and NP 30, or a combination thereof can bereferred to as a server. The HNED 40 can also function as a server. Theterm ‘server’ means an entity that transmits data to another entity in adigital broadcast environment. Considering a server-client concept, theserver can be regarded as an absolute concept and a relative concept.For example, one entity can be a server in a relationship with a firstentity and can be a client in a relationship with a second entity.

According to the present invention, a digital device can include amanager to manage a display window of the digital device and to generateand to transmit a plurality of status data of the digital device to acontroller and the controller to receive a first signal from a firstapplication requesting registration as an application voter, to transmita second signal requesting a confirmation related to execute a secondapplication to the first application when first status data is receivedfrom a service interface, to receive a response to the second signalfrom the first application, and to execute the second application toenter a screensaver mode based on the received response.

Here, the first application includes at least one of an applicationincluding video data and an application not including video data, andwherein the second application is an application dedicated to thescreensaver mode. The controller generates a video object when the firstapplication is an application including the video data. The first signalis received from the application when video data is generated or whenthe video object is generated. And, the controller determines whether ornot the first application or the generated object is in a list relatedto the registration which is prestored in a memory and reserve or rejectthe registration when the first application or the generated object isnot included in the list. The first status data is generated by atimeout status in which any input to the digital device is not receivedduring a predetermined time. The controller receives second status datafor the corresponding video data from the generated video object whenthe received response is received. The second status data for thecorresponding video data includes at least one of a size of theoutputted video data, an area or a location of the outputted video data,and video status data, the video status data including informationindicating a reproduction or stop of the video data. The controller onlyexecutes the second application when the received second signal includesa signal of acking. Also, the controller launches the second applicationand executes the second application at an uppermost layer on a screenvia the launched second application. The second application determinesany one of a fullscreen and a picture in graphic (PIG) to execute thescreensaver mode. The controller receives a third signal requesting torelease execution of the second application and transmits a controlcommand in response to the received third signal to the secondapplication. The third signal includes at least one of user input forreleasing a timeout status corresponding to the first status data, anexternal input manager (EIM) signal, a physical device manager (PDM)signal, and a not watch service signal. The first application transmitsthe first signal when the application is located in a foreground, andwherein the first application does not transmit the first signal whenthe first application is located in a background.

FIG. 2 is a schematic diagram of a digital receiver 200 according to anembodiment of the present invention. The digital receiver 200 cancorrespond to the client 100 shown in FIG. 1.

The digital receiver 200 can include a network interface 201, a TCP/IPmanager 202, a service delivery manager 203, an SI (System Information,Service Information or Signaling Information) decoder 204, ademultiplexer 205, an audio decoder 206, a video decoder 207, a displayA/V and OSD (On Screen Display) module 208, a service control manager209, a service discovery manager 210, a SI & metadata database (DB) 211,a metadata manager 212, an application manager, etc.

The network interface 201 can receive or transmit IP packets includingservice data through a network. In other words, the network interface201 can receive IP packets including at least one of text data, imagedata, audio data, and video data, used for SNS, as well as services andapplications from a server connected thereto through a network.

The TCP/IP manager 202 can involve delivery of IP packets transmitted tothe digital receiver 200 and IP packets transmitted from the digitalreceiver 200, that is, packet delivery between a source and adestination. The TCP/IP manager 202 can classify received packetsaccording to an appropriate protocol and output the classified packetsto the service delivery manager 205, the service discovery manager 210,the service control manager 209, and the metadata manager 212.

The service delivery manager 203 can control classification andprocessing of service data. The service delivery manager 203 can controlreal-time streaming data, for example, using real-timeprotocol/real-time control protocol (RTP/RTCP). In other words, theservice delivery manager 203 can parse a real-time streaming datapacket, transmitted on the basis of the RTP, according to the RTP andtransmits the parsed data packet to the demultiplexer 205 or store theparsed data packet in the SI & metadata DB 211 under the control of theservice manager 213. The service delivery manager 203 can feed backnetwork reception information to the server on the basis of the RTP.

The demultiplexer 205 can demultiplex audio data, video data, SI from areceived packet through packet identifier (PID) filtering and transmitthe demultiplexed data to corresponding processors, that is, theaudio/video decoder 206/207 and the SI decoder 204.

The SI decoder 204 can parse and/or decode SI data such as programspecific information (PSI), program and system information protocol(PSIP), digital video broadcast-service information (DVB-SI), etc. TheSI decoder 204 can store the parsed and/or decoded SI data in the SI &metadata DB 211. The SI data stored in the SI & metadata DB 211 can beread or extracted and used by a component which requires the SI data.EPG data can also be read from the SI & metadata DB 211. This will bedescribed below in detail.

The audio decoder 206 and the video decoder 207 respectively can decodeaudio data and video data, which are demultiplexed by the demultiplexer205. The decoded audio data and video data can be provided to the userthrough the display unit 208.

The application manager can include a service manager 213 and a userinterface (UI) manager 214, administrate the overall state of thedigital receiver 200, provides a UI, and manage other mangers.

The UI manager 214 can receive a key input from the user and provide agraphical user interface (GUI) related to a receiver operationcorresponding to the key input through OSD.

The service manager 213 can control and manage service-related managerssuch as the service delivery manager 203, the service discovery manager210, the service control manager 209, and the metadata manager 212.

The service manager 213 can configure a channel map and enable channelcontrol at the request of the user on the basis of the channel map. Theservice manager 213 can receive service information corresponding tochannel from the SI decoder 204 and set audio/video PID of a selectedchannel to the demultiplexer 205 so as to control the demultiplexingprocedure of the demultiplexer 205.

The service discovery manager 210 can provide information required toselect a service provider that provides a service. Upon receipt of asignal for selecting a channel from the service manager 213, the servicediscovery manager 210 discovers a service on the basis of the receivedsignal.

The service control manager 209 can select and control a service. Forexample, the service control manager 209 can perform service selectionand control using IGMP (Internet Group Management Protocol) or real timestreaming protocol (RTSP) when the user selects a live broadcast serviceand using RTSP when the user selects a video on demand (VOD) service.The schemes or protocols described in the specification are exemplifiedin order to aid in understanding of the present invention forconvenience of explanations and the scope of the present invention isnot limited thereto. Accordingly, the schemes or protocols can bedetermined in consideration of conditions different from the exemplifiedones and other schemes or protocols can be used.

The metadata manager 212 can manage metadata regarding services andstore metadata in the SI & metadata DB 211.

The SI & metadata DB 211 can store SI data decoded by the SI decoder204, metadata managed by the metadata manager 212, and informationrequired to select a service provider, which is provided by the servicediscovery manager 210. In addition, the SI & metadata DB 211 can storesystem set-up data.

The SI & metadata DB 211 can be implemented using a Non-Volatile RAM(NVRAM) or a Flash memory, and the like.

An IMS (IP Multimedia Subsystem) gateway 250 can include functionsrequired to access an IMS based IPTV services.

FIG. 3 is a block diagram of a mobile terminal 300 in accordance with anembodiment of the present invention. With reference to FIG. 3, themobile terminal 300 includes a wireless communication unit 310, an A/V(audio/video) input unit 320, an user input unit 330, a sensing unit340, an output unit 350, a memory 360, an interface unit 370, acontroller 380, and a power supply unit 390. FIG. 3 shows the mobileterminal 300 having various components, but it is understood thatimplementing all of the illustrated components is not a requirement.More or fewer components can be implemented according to variousembodiments.

The wireless communication unit 310 typically includes one or morecomponents which permit wireless communication between the mobileterminal 300 and a wireless communication system or network within whichthe mobile terminal 300 is located. For instance, the wirelesscommunication unit 310 can include a broadcast receiving module 311, amobile communication module 312, a wireless Internet module 313, ashort-range communication module 314, and a position-location module315.

The broadcast receiving module 311 receives a broadcast signal and/orbroadcast associated information from an external broadcast managingserver via a broadcast channel. The broadcast channel can include asatellite channel and a terrestrial channel. At least two broadcastreceiving modules 311 can be provided in the mobile terminal 300 tofacilitate simultaneous reception of at least two broadcast channels orbroadcast channel switching.

The broadcast managing server is generally a server which generates andtransmits a broadcast signal and/or broadcast associated information ora server which is provided with a previously generated broadcast signaland/or broadcast associated information and then transmits the providedsignal or information to a terminal. The broadcast signal can beimplemented as a TV broadcast signal, a radio broadcast signal, and/or adata broadcast signal, among other signals. If desired, the broadcastsignal can further include a broadcast signal combined with a TV orradio broadcast signal.

The broadcast associated information includes information associatedwith a broadcast channel, a broadcast program, or a broadcast serviceprovider. Furthermore, the broadcast associated information can beprovided via a mobile communication network. In this case, the broadcastassociated information can be received by the mobile communicationmodule 312.

The broadcast associated information can be implemented in variousforms. For instance, broadcast associated information can include anelectronic program guide (EPG) of digital multimedia broadcasting (DMB)and an electronic service guide (ESG) of digital videobroadcast-handheld (DVB-H).

The broadcast receiving module 311 can be configured to receivebroadcast signals transmitted from various types of broadcast systems.By non-limiting example, such broadcasting systems can include digitalmultimedia broadcasting-terrestrial (DMB-T), digital multimediabroadcasting-satellite (DMB-S), digital video broadcast-handheld(DVB-H), digital video broadcast-convergence of broadcasting and mobileservices (DVB-CBMS), Open Mobile Alliance Broadcast (OMA-BCAST), thedata broadcasting system known as media forward link only (MediaFLO™)and integrated services digital broadcast-terrestrial (ISDB-T).Optionally, the broadcast receiving module 311 can be configured to besuitable for other broadcasting systems as well as the above-noteddigital broadcasting systems.

The broadcast signal and/or broadcast associated information received bythe broadcast receiving module 311 can be stored in a suitable device,such as the memory 360.

The mobile communication module 312 transmits/receives wireless signalsto/from one or more network entities (e.g., a base station, an externalterminal, and/or a server) via a mobile network such as GSM (GlobalSystem for Mobile communications), CDMA (Code Division Multiple Access),or WCDMA (Wideband CDMA). Such wireless signals can carry audio, video,and data according to text/multimedia messages.

The wireless Internet module 313 supports Internet access for the mobileterminal 300. This module can be internally or externally coupled to themobile terminal 300. The wireless Internet technology can include WLAN(Wireless LAN), Wi-Fi, Wibro™ (Wireless broadband), Wimax™ (WorldInteroperability for Microwave Access), HSDPA (High Speed DownlinkPacket Access), GSM, CDMA, WCDMA, or LTE (Long Term Evolution).

Wireless Internet access by Wibro™, HSPDA, GSM, CDMA, WCDMA, or LTE isachieved via a mobile communication network. In this regard, thewireless Internet module 313 can be considered as being a kind of themobile communication module 312 to perform the wireless Internet accessvia the mobile communication network.

The short-range communication module 314 facilitates relatively short-range communications. Suitable technologies for implementing this moduleinclude radio frequency identification (RFID), infrared data association(IrDA), ultra-wideband (UWB), as well as the networking technologiescommonly referred to as Bluetooth™ and ZigBee™, to name a few.

The position-location module 315 identifies or otherwise obtains thelocation of the mobile terminal 100. According to one embodiment, thismodule can be implemented with a global positioning system (GPS) module.The GPS module 315 is able to precisely calculate current 3-dimensionalposition information based on at least longitude, latitude or altitudeand direction (or orientation) by calculating distance information andprecise time information from at least three satellites and thenapplying triangulation to the calculated information. Locationinformation and time information are calculated using three satellites,and errors of the calculated location position and one or more timeinformation are then amended (or corrected) using another satellite. Inaddition, the GPS module 315 is able to calculate speed information bycontinuously calculating a real-time current location.

With continued reference to FIG. 3, the audio/video (A/V) input unit 320is configured to provide audio or video signal input to the mobileterminal 300. As shown, the A/V input unit 320 includes a camera 321 anda microphone 322. The camera 321 receives and processes image frames ofstill pictures or video, which are obtained by an image sensor in avideo call mode or a photographing mode. Furthermore, the processedimage frames can be displayed on the display 351.

The image frames processed by the camera 321 can be stored in the memory360 or can be transmitted to an external recipient via the wirelesscommunication unit 310. Optionally, at least two cameras 321 can beprovided in the mobile terminal 300 according to the environment ofusage.

The microphone 322 receives an external audio signal while the portabledevice is in a particular mode, such as phone call mode, recording modeand voice recognition. This audio signal is processed and converted intoelectronic audio data. The processed audio data is transformed into aformat transmittable to a mobile communication base station via themobile communication module 312 in a call mode. The microphone 322typically includes assorted noise removing algorithms to remove noisegenerated in the course of receiving the external audio signal.

The user input unit 330 generates input data responsive to usermanipulation of an associated input device or devices. Examples of suchdevices include a keypad, a dome switch, a touchpad (e.g., staticpressure/capacitance), a jog wheel, and a jog switch.

The sensing unit 340 provides sensing signals for controlling operationsof the mobile terminal 300 using status measurements of various aspectsof the mobile terminal. For instance, the sensing unit 340 can detect anopen/closed status of the mobile terminal 100, the relative positioningof components (e.g., a display and keypad) of the mobile terminal 300, achange of position (or location) of the mobile terminal 300 or acomponent of the mobile terminal 300, a presence or absence of usercontact with the mobile terminal 300, and an orientation oracceleration/deceleration of the mobile terminal 300. As an example, amobile terminal 300 configured as a slide-type mobile terminal isconsidered. In this configuration, the sensing unit 340 can sensewhether a sliding portion of the mobile terminal is open or closed.According to other examples, the sensing unit 340 senses the presence orabsence of power provided by the power supply unit 390, and the presenceor absence of a coupling or other connection between the interface unit370 and an external device. According to one embodiment, the sensingunit 340 can include a proximity sensor 341.

The output unit 350 generates output relevant to the senses of sight,hearing, and touch. Furthermore, the output unit 350 includes thedisplay 351, an audio output module 352, an alarm unit 353, a hapticmodule 354, and a projector module 355.

The display 351 is typically implemented to visually display (output)information associated with the mobile terminal 300. For instance, ifthe mobile terminal is operating in a phone call mode, the display willgenerally provide a user interface (UI) or graphical user interface(GUI) which includes information associated with placing, conducting,and terminating a phone call. As another example, if the mobile terminal300 is in a video call mode or a photographing mode, the display 351 canadditionally or alternatively display images which are associated withthese modes, the UI or the GUI.

The display module 351 can be implemented using known displaytechnologies. These technologies include, for example, a liquid crystaldisplay (LCD), a thin film transistor-liquid crystal display (TFT-LCD),an organic light-emitting diode display (OLED), a flexible display and athree-dimensional display. The mobile terminal 300 can include one ormore of such displays.

Some of the displays can be implemented in a transparent or opticaltransmittive type, i.e., a transparent display. A representative exampleof the transparent display is the TOLED (transparent OLED). A rearconfiguration of the display 351 can be implemented as the opticaltransmittive type as well. In this configuration, a user can be able tosee an object located at the rear of a terminal body on a portion of thedisplay 351 of the terminal body.

At least two displays 351 can be provided in the mobile terminal 300 inaccordance with one embodiment of the mobile terminal 300. For instance,a plurality of displays can be arranged to be spaced apart from eachother or to form a single body on a single face of the mobile terminal300. Alternatively, a plurality of displays can be arranged on differentfaces of the mobile terminal 300.

If the display 351 and a sensor for detecting a touch action(hereinafter called ‘touch sensor’) are configured as a mutual layerstructure (hereinafter called ‘touch screen’), the display 351 is usableas an input device as well as an output device. In this case, the touchsensor can be configured as a touch film, a touch sheet, or a touchpad.

The touch sensor can be configured to convert pressure applied to aspecific portion of the display 351 or a variation of capacitancegenerated from a specific portion of the display 351 to an electronicinput signal. Moreover, the touch sensor is configurable to detectpressure of a touch as well as a touched position or size.

If a touch input is made to the touch sensor, a signal(s) correspondingto the touch input is transferred to a touch controller. The touchcontroller processes the signal(s) and then transfers the processedsignal(s) to the controller 380. Therefore, the controller 380 is madeaware when a prescribed portion of the display 351 is touched.

Referring to FIG. 3, a proximity sensor 341 can be provided at aninternal area of the mobile terminal 300 enclosed by the touch screen oraround the touch screen. The proximity sensor is a sensor that detects apresence or non-presence of an object approaching a prescribed detectingsurface or an object existing (or located) around the proximity sensorusing an electromagnetic field strength or infrared ray withoutmechanical contact. Hence, the proximity sensor 341 is more durable thana contact type sensor and also has utility broader than the contact typesensor.

The proximity sensor 341 can include one of a transmittive photoelectricsensor, a direct reflective photoelectric sensor, a mirror reflectivephotoelectric sensor, a radio frequency oscillation proximity sensor, anelectrostatic capacity proximity sensor, a magnetic proximity sensor,and an infrared proximity sensor. If the touch screen includes theelectrostatic capacity proximity sensor, it is configured to detect theproximity of a pointer using a variation of an electric field accordingto the proximity of the pointer. In this configuration, the touch screen(touch sensor) can be considered as the proximity sensor.

For clarity and convenience of explanation, an action for enabling thepointer approaching the touch screen to be recognized as placed on thetouch screen can be named ‘proximity touch’ and an action of enablingthe pointer to actually come into contact with the touch screen cannamed ‘contact touch’. And, a position, at which the proximity touch ismade to the touch screen using the pointer, can mean a position of thepointer vertically corresponding to the touch screen when the pointermakes the proximity touch.

The proximity sensor detects a proximity touch and a proximity touchpattern (e.g., a proximity touch distance, a proximity touch duration, aproximity touch position, a proximity touch shift state). Informationcorresponding to the detected proximity touch action and the detectedproximity touch pattern can be output to the touch screen.

The audio output module 352 functions in various modes including acall-receiving mode, a call-placing mode, a recording mode, a voicerecognition mode, and a broadcast reception mode to output audio datawhich is received from the wireless communication unit 310 or is storedin the memory 360. During operation, the audio output module 352 outputsaudio relating to a particular function (e.g., call received, messagereceived). The audio output module 352 can be implemented using one ormore speakers, buzzers, other audio producing devices, and combinationsof these devices.

The alarm unit 353 outputs a signal for announcing the occurrence of aparticular event associated with the mobile terminal 300. Typical eventsinclude a call received, a message received and a touch input received.The alarm unit 353 is able to output a signal for announcing the eventoccurrence by way of vibration as well as video or audio signal. Thevideo or audio signal can be output via the display 351 or the audiooutput module 352. Hence, the display 351 or the audio output module 352can be regarded as a part of the alarm unit 353.

The haptic module 354 generates various tactile effects that can besensed by a user. Vibration is a representative one of the tactileeffects generated by the haptic module 354. The strength and pattern ofthe vibration generated by the haptic module 354 are controllable. Forinstance, different vibrations can be output in a manner of beingsynthesized together or can be output in sequence.

The haptic module 354 is able to generate various tactile effects aswell as the vibration. For instance, the haptic module 354 can generatean effect attributed to the arrangement of pins vertically movingagainst a contact skin surface, an effect attributed to theinjection/suction power of air though an injection/suction hole, aneffect attributed to the skim over a skin surface, an effect attributedto a contact with an electrode, an effect attributed to an electrostaticforce, and an effect attributed to the representation of a hot/coldsense using an endothermic or exothermic device.

The haptic module 354 can be implemented to enable a user to sense thetactile effect through a muscle sense of a finger or an arm as well asto transfer the tactile effect through direct contact. Optionally, atleast two haptic modules 354 can be provided in the mobile terminal 300in accordance with an embodiment of the mobile terminal 300.

The memory 360 is generally used to store various types of data tosupport the processing, control, and storage requirements of the mobileterminal 300. Examples of such data include program instructions forapplications operating on the mobile terminal 300, contact data,phonebook data, messages, audio, still pictures (or photo), and movingpictures. Furthermore, a recent use history or a cumulative usefrequency of each data (e.g., use frequency for each phonebook, eachmessage or each multimedia file) can be stored in the memory 360.

Moreover, data for various patterns of vibration and/or sound output inresponse to a touch input to the touch screen can be stored in thememory 360.

The memory 360 can be implemented using any type or combination ofsuitable volatile and non-volatile memory or storage devices includinghard disk, random access memory (RAM), static random access memory(SRAM), electrically erasable programmable read-only memory (EEPROM),erasable programmable read-only memory (EPROM), programmable read-onlymemory (PROM), read-only memory (ROM), magnetic memory, flash memory,magnetic or optical disk, multimedia card micro type memory, card-typememory (e.g., SD memory or XD memory), or other similar memory or datastorage device. Furthermore, the mobile terminal 300 is able to operatein association with a web storage for performing a storage function ofthe memory 360 on the Internet.

The interface unit 370 can be implemented to couple the mobile terminal100 with external devices. The interface unit 370 receives data from theexternal devices or is supplied with power and then transfers the dataor power to the respective elements of the mobile terminal 300 orenables data within the mobile terminal 300 to be transferred to theexternal devices. The interface unit 370 can be configured using awired/wireless headset port, an external charger port, a wired/wirelessdata port, a memory card port, a port for coupling to a device having anidentity module, audio input/output ports, video input/output ports,and/or an earphone port.

The identity module is a chip for storing various kinds of informationfor authenticating a usage authority of the mobile terminal 300 and caninclude a User Identify Module (UIM), a Subscriber Identity Module(SIM), and/or a Universal Subscriber Identity Module (USIM). A devicehaving the identity module (hereinafter called ‘identity device’) can bemanufactured as a smart card. Therefore, the identity device isconnectible to the mobile terminal 300 via the corresponding port.

When the mobile terminal 300 is connected to an external cradle, theinterface unit 370 becomes a passage for supplying the mobile terminal300 with a power from the cradle or a passage for delivering variouscommand signals input from the cradle by a user to the mobile terminal300. Each of the various command signals input from the cradle or thepower can operate as a signal enabling the mobile terminal 300 torecognize that it is correctly loaded in the cradle.

The controller 380 typically controls the overall operations of themobile terminal 300. For example, the controller 380 performs thecontrol and processing associated with voice calls, data communications,and video calls. The controller 380 can include a multimedia module 381that provides multimedia playback. The multimedia module 381 can beconfigured as part of the controller 380, or implemented as a separatecomponent.

Moreover, the controller 380 is able to perform a pattern (or image)recognizing process for recognizing a writing input and a picturedrawing input carried out on the touch screen as characters or images,respectively.

The power supply unit 390 provides power required by various componentsof the mobile terminal 300. The power can be internal power, externalpower, or combinations of internal and external power.

Various embodiments described herein can be implemented in acomputer-readable medium using, for example, computer software,hardware, or some combination of computer software and hardware. For ahardware implementation, the embodiments described herein can beimplemented within one or more application specific integrated circuits(ASICs), digital signal processors (DSPs), digital signal processingdevices (DSPDs), programmable logic devices (PLDs), field programmablegate arrays (FPGAs), processors, controllers, micro-controllers,microprocessors, other electronic units designed to perform thefunctions described herein, or a selective combination thereof. Suchembodiments can also be implemented by the controller 180.

For a software implementation, the embodiments described herein can beimplemented with separate software modules, such as procedures andfunctions, each of which performs one or more of the functions andoperations described herein. The software codes can be implemented witha software application written in any suitable programming language andcan be stored in memory such as the memory 160, and executed by acontroller or processor, such as the controller 380.

FIG. 4 illustrates a digital receiver according to another embodiment ofthe present invention.

Referring to FIG. 4, an exemplary digital receiver 400 according to thepresent invention can include a broadcast receiving unit 405, anexternal device interface 435, a storage unit 440, a user inputinterface 450, a controller 470, a display unit 480, an audio outputunit 485, a power supply unit 490, and a photographing unit (not shown).The broadcast receiving unit 305 can include at least one of one or moretuner 410, a demodulator 420, and a network interface 430.

The broadcast receiving unit 405 can include the tuner 410 and thedemodulator 420 without the network interface 430, or can include thenetwork interface 430 without the tuner 410 and the demodulator 420. Thebroadcast receiving unit 405 can include a multiplexer (not shown) tomultiplex a signal, which is subjected to the tuner 410 and demodulatedby the demodulator 420, and a signal received through the networkinterface 40.

In addition, the broadcast receiving unit 405 can include ademultiplexer (not shown) and demultiplex a multiplexed signal, ademodulated signal, or a signal received through the network interface430.

The tuner 410 can receive a radio frequency (RF) broadcast signal bytuning to a channel selected by the user from among RF broadcast signalsreceived through an antenna or all previously stored channels.

The demodulator 420 can receive a digital IF (Intermediate Frequency)signal (DIF) converted by the tuner 410 and demodulate the DIF signal.

A stream signal output from the demodulator 420 can be input to thecontroller 470.

The controller 470 can control demultiplexing, audio/video signalprocessing, etc. Furthermore, the controller 470 can control output ofan image through the display unit 480 and output of audio through theaudio output unit 485.

The external device interface 435 can provide an environment forinterfacing external devices with the digital receiver 400. To implementthis, the external device interface 435 can include an A/V input/outputunit (not shown) or an RF communication unit (not shown).

The external device interface 435 can be connected with external devicessuch as a digital versatile disk (DVD), a Blu-ray player, a game device,a camera, a camcorder, a computer (notebook computer), a Cloud and amobile device (e.g., a Smart Phone, a tablet PC, and the like) in awired/wireless manner.

The A/V input/output unit can include a USB (Universal Serial Bus)terminal, a composite video banking sync (CVBS) terminal, a componentterminal, an S-video terminal (analog), a digital visual interface (DVI)terminal, a high definition multimedia interface (HDMI) terminal, an RGBterminal, a D-SUB terminal, etc.

The RF communication unit can perform near field communication. Thedigital receiver 400 can be networked with other electronic apparatusesaccording to communication protocols such as Bluetooth, radio frequencyidentification (RFID), infrared data association (IrDA), ultra wideband(UWB), ZigBee, and digital living network alliance (DLNA), for example.

The network interface 430 can provide an interface for connecting thedigital receiver 400 to wired/wireless networks.

Using the network interface 430, the digital receiver cantransmit/receive data to/from other users or other electronicapparatuses or access a predetermined web page through a networkconnected thereto or another network linked to the connected network.

The network interface 430 can selectively receive a desired applicationfrom among publicly open applications through a network.

The storage unit 440 can store programs for signal processing andcontrol and store a processed video, audio or data signal.

In addition, the storage unit 440 can execute a function of temporarilystoring a video, audio or data signal input from the external deviceinterface 435 or the network interface 430.

The storage unit 440 can store information about a predeterminedbroadcast channel through a channel memory function.

The storage unit 440 can store an application or a list of applicationsinput from the external device interface 435 or the network interface430.

The storage unit 440 can store various platforms which will be describedlater.

The storage unit 440 can include storage media of one or more types,such as a flash memory type, a hard disk type, a multimedia card microtype, a card type memory (e.g. SD or XD memory), RAM, EEPROM, etc.

The digital receiver 400 can reproduce content files (a video file, astill image file, a music file, a text file, an application file, etc.)and provide them to the user.

While FIG. 4 illustrates an embodiment in which the storage unit 440 isseparated from the controller 470, the configuration of the digitalreceiver 400 is not limited thereto and the storage unit 440 can beincluded in the controller 470.

The user input interface 450 can transmit a signal input by the user tothe controller 470 or deliver a signal output from the controller 470 tothe user.

For example, the user input interface 450 can receive control signalssuch as a power on/off signal, a channel selection signal, an imagesetting signal, etc. from the remote controller 500 or transmit controlsignals of the controller 470 to the remote controller 500 according tovarious communication schemes such as RF communication, IRcommunication, and the like.

The user input interface 450 can transmit control signals input througha power key, a channel key, a volume key, and a local key (not shown) ofa set value to the controller 470.

The user input interface 450 can transmit a control signal input from asensing unit (not shown) which senses a gesture of the user or deliver asignal of the controller 470 to the sensing unit (not shown).

Here, the sensing unit (not shown) can include a touch sensor, a voicesensor, a position sensor, an action sensor, an acceleration sensor, agyro sensor, a speed sensor, a tilt sensor, a temperature sensor, apressure or back-pressure sensor, etc.

The controller 470 can generate and output a signal for video or audiooutput by demultiplexing streams input through the tuner 410, thedemodulator 420 or the external device interface 435 or processingdemultiplexed signals.

A video signal processed by the controller 470 can be input to thedisplay unit 380 and displayed as an image through the display unit 480.In addition, the video signal processed by the controller 470 can beinput to an external output device through the external device interface435.

An audio signal processed by the controller 470 can be applied to theaudio output unit 485. Otherwise, the audio signal processed by thecontroller 470 can be applied to an external output device through theexternal device interface 435.

The controller 470 can include a demultiplexer and an image processor,which are not shown in FIG. 4.

The controller 470 can control the overall operation of the digitalreceiver 300. For example, the controller 470 can control the tuner 410to tune to an RF broadcast corresponding to a channel selected by theuser or a previously stored channel.

The controller 470 can control the digital receiver 400 according to auser command input through the user input interface 450 or an internalprogram. Particularly, the controller 470 can control the digitalreceiver 400 to be linked to a network to download an application orapplication list that the user desires to the digital receiver 400.

For example, the controller 470 can control the tuner 410 to receive asignal of a channel selected in response to a predetermined channelselection command received through the user input interface 450. Inaddition, the controller 470 can process a video, audio or data signalcorresponding to the selected channel. The controller 470 can controlinformation on a channel selected by the user to be output with aprocessed video or audio signal through the display unit 480 or theaudio output unit 485.

Alternatively, the controller 470 can control a video signal or an audiosignal received from an external apparatus, for example, a camera or acamcorder through the external device interface 435 to be output throughthe display unit 480 or the audio output unit 485 according to anexternal device image reproduction command received through the userinput interface 450.

The controller 470 can control the display unit 480 to display images.For example, the controller 470 can control a broadcast image inputthrough the tuner 410, an external input image received through theexternal device interface 435, an image input through the networkinterface 430, or an image stored in the storage unit 440 to bedisplayed on the display unit 480. Here, an image displayed on thedisplay unit 480 can be a still image or video, and it can be a 2D or 3Dimage.

The controller 470 can control reproduction of content. Here, thecontent can be content stored in the digital receiver 400, receivedbroadcast content, or content input from an external device. The contentcan include at least one of a broadcast image, an external input image,an audio file, a still image, an image of a linked web, and a text file.

The controller 470 can control display of applications or an applicationlist, downloadable from the digital receiver 400 or an external network,when an application view menu is selected.

The controller 470 can control installation and execution ofapplications downloaded from an external network in addition to varioususer interfaces. Furthermore, the controller 470 can control an imagerelating to an application executed by user selection to be displayed onthe display unit 480.

The digital receiver 400 can further include a channel browsingprocessor (not shown) which generates a thumbnail image corresponding toa channel signal or an external input signal.

The channel browsing processor can receive a stream signal (e.g., TS)output from the demodulator 420 or a stream signal output from theexternal device interface 435 and extract an image from the receivedstream signal to generate a thumbnail image. The generated thumbnailimage can be directly input to the controller 470 or can be encoded andthen input to the controller 470. Also, the thumbnail image can be codedinto a stream and then applied to the controller 470. The controller 470can display a thumbnail list including a plurality of thumbnail imageson the display unit 480 using thumbnail images input thereto. Thethumbnail images included in the thumbnail list can be updatedsequentially or simultaneously. Accordingly, the user can convenientlycheck content of a plurality of broadcast channels.

The display unit 480 can convert a video signal, a data signal, and anOSD signal processed by the controller 470 and a video signal and a datasignal received from the external device interface 435 into RGB signalsto generate driving signals.

The display unit 480 can be a PDP, an LCD, an OLED, a flexible display,a 3D display or the like.

The display unit 480 can be configured as a touch-screen and used as aninput device rather than an output device.

The audio output unit 485 receives a signal audio-processed by thecontroller 470, for example, a stereo signal, a 3.1 channel signal or a5.1 channel signal, and outputs the received signal as audio. The audiooutput unit 485 can be configured as one of various speakers.

The digital receiver 400 can further include the sensing unit (notshown) for sensing a gesture of the user, which includes at least one ofa touch sensor, a voice sensor, a position sensor, and an action sensor,as described above.

A signal sensed by the sensing unit (not shown) can be delivered to thecontroller 470 through the user input interface 450.

The digital receiver 400 can further include the photographing unit (notshown) for photographing the user. Image information acquired by thephotographing unit (not shown) can be supplied to the controller 470.

The controller 470 can sense a gesture of the user from an imagecaptured by the photographing unit (not shown) or a signal sensed by thesensing unit (not shown), or by combining the image and the signal.

The power supply unit 490 can supply power to the digital receiver 400.

Particularly, the power supply unit 490 can supply power to thecontroller 470 which can be implemented as a system-on-chip (SoC), thedisplay unit 480 for displaying images, and the audio output unit 485for audio output.

The remote controller 500 can transmit user input to the user inputinterface 450. To achieve this, the remote controller 500 can useBluetooth, RF communication, IR communication, UWB, ZigBee, etc.

In addition, the remote controller 500 can receive audio, video or datasignal output from the user input interface 350 and display the receivedsignal or output the same as audio or vibration.

The functions of the application manager shown in FIG. 2 can be dividedand executed by the controller 470, the storage unit 440, the userinterface 450, the display unit 480 and the audio output unit 485 whichare controlled by the controller 470.

The digital receivers shown in FIGS. 2 and 4 are exemplary andcomponents thereof can be integrated, added or omitted according tospecifications thereof. That is, two or more components can beintegrated into one component or one component can be subdivided intotwo or more components as required. The function executed by eachcomponent is exemplified to describe embodiments of the presentinvention and detailed operations or devices do not limit the scope ofthe present invention. Some of the components shown in FIG. 2 can beomitted or a component (not shown in FIG. 2) can be added as required.The digital receiver according to the present invention can not includethe tuner and the demodulator, differently from the digital receiversshown in FIGS. 2 and 4, and can receive content through the networkinterface or the external device interface and reproduce the content.

FIG. 5 illustrates a digital receiver according to another embodiment ofthe present invention. Particularly, FIG. 5 shows a configuration forimplementing a 3D digital receiver, which can be included in theconfigurations of FIGS. 2 through 4.

The digital receiver according to the present invention can include ademultiplexer 510, an image processor 520, an OSD generator 540, a mixer550, a frame rate converter (FRC) 555, and a 3D formatter (or an Outputformatter) 560.

The demultiplexer 510 can demultiplex an input stream signal into anMPEG-2 TS image, an audio signal and a data signal, for example.

The image processor 420 can process a demultiplexed image signal using avideo decoder 525 and a scaler 535.

The video decoder 525 can decode the demultiplexed image signal and thescaler 535 can scale the resolution of the decoded image signal suchthat the image signal can be displayed.

The image signal decoded by the image processor 520 can be input to themixer 550.

The OSD generator 540 can generate OSD data automatically or accordingto user input. For example, the OSD generator 540 can generate data tobe displayed on the screen of an output unit in the form of an image ortext on the basis of a control signal of a user input interface.

OSD data generated by the OSD generator 540 can include various datasuch as a user interface image of the digital receiver, various menuscreens, widget, icons, and information on ratings. The OSD generator540 can generate a caption of a broadcast image or data for displayingEPG based broadcast information.

The mixer 550 can mix the OSD data generated by the OSD generator 540and the image signal processed by the image processor 520. The mixer 550can provide the mixed signal to the 3D formatter 560. By mixing thedecoded image signal and the OSD data, OSD can be overlaid on abroadcast image or external input image.

The frame rate converter (FRC) 555 can convert a frame rate of inputvideo. For example, the frame rate converter 555 can convert the framerate of an input 60 Hz video to a frame rate of 120 Hz or 240 Hz,according to an output frequency of the output unit. The frame rateconverter 555 can be bypassed when frame conversion is not executed.

The 3D formatter 560 can change the output of the frame rate converter555, which is input thereto, into a form suitable for the output formatof the output unit. For example, the 3D formatter 560 can output an RGBdata signal. In this case, this RGB data signal can be output accordingto low voltage differential signaling (LVDS) or mini-LVDS. When a 3Dimage signal output from the frame rate converter 555 is input to the 3Dformatter 560, the 3D formatter 560 can format the 3D image signal suchthat the 3D image signal is matched to the output format of the outputunit, to thereby support a 3D service.

An audio processor (not shown) can audio-process a demultiplexed audiosignal. The audio processor (not shown) can support various audioformats. For example, when audio signals are encoded in MPEG-2, MPEG-4,advanced audio coding (AAC), high efficiency-AAC (HE-AAC), AC-3 and bitsliced audio coding (BSAC) formats, the audio processor (not shown) caninclude decoders corresponding to the formats to process the audiosignals.

Furthermore, the audio processor (not shown) can control base, trebleand volume.

In addition, a data processor (not shown) can process a demultiplexeddata signal. For example, when a demultiplexed data signal is encoded,the data processor (not shown) can decode the encoded demultiplexed datasignal. Here, the encoded data signal can be EPG information includingbroadcast information such as the start time and end time (or duration)of a broadcast program which is broadcast through each channel.

The digital receivers shown in FIGS. 2 and 4 are exemplary andcomponents thereof can be integrated, added or omitted according tospecifications thereof. That is, two or more components can beintegrated into one component or one component can be subdivided intotwo or more components as required. The function executed by eachcomponent is exemplified to describe embodiments of the presentinvention and detailed operations or devices do not limit the scope ofthe present invention.

The digital receiver is an example of image signal processors whichprocess an image stored therein or an input image. Other examples of theimage signal processors can include a set-top box (STB) which does notinclude the display unit 380 and the audio output unit 485 shown in FIG.4, a DVD player, a Blu-ray player, a game device, a computer, etc.

FIG. 6 illustrates remote controllers of a digital receiver according toan embodiment of the present invention.

To execute various operations for implementing the present inventionaccording to embodiments, various user interface devices (UIDs) whichcan communicate with a digital receiver 600 in a wired/wireless mannercan be used as remote controllers.

UIDs can include a mobile device (e.g., a smart phone, a tablet PC, andthe like), a magic remote controller 620 and a remote controller 630equipped with a keyboard and a touch pad in addition to a general remotecontroller 610.

The remote controllers can use various communication protocols such asBluetooth, RFID, IrDA, UWB, ZigBee, DLNA, etc.

The magic remote controller 620 can include a gyro sensor mountedtherein to sense vibration of a user's hand or rotation.

That is, the magic remote controller 620 can move a pointer according toup, down, left and right motions of the user such that the user caneasily execute a desired action, for example, easily control a channelor a menu.

The remote controller 630 including the keyboard and touch pad canfacilitate text input through the keyboard and control of movement of apointer and magnification and reduction of a picture or video throughthe touch pad.

The digital device described in the present specification uses webOS asa platform. Hereinafter, a webOS based process or algorithm can beperformed by the controller of the above-described digital device.

The controller includes the controllers of FIGS. 2 to 5 and has wideconcepts. Accordingly, hereinafter, a component for processing webOSbased services, applications, content, etc., including software,firmware or hardware in a digital device is referred to a controller.

Such a webOS based platform can improve development independency andfunctional extensibility by integrating services, applications, etc.based on a Luna-service bus, for example, and increase applicationdevelopment productivity based on web application framework. Inaddition, system resources, etc. can be efficiently used via a webOSprocess and resource management to support multitasking.

A webOS platform described in the present specification can be availablenot only for stationary devices such as personal computers (PCs), TVsand set top boxes (STBs) but also for mobile devices such as cellularphones, smartphones tablet PCs, laptops, and wearable devices.

A software structure for a digital device is a monolithic structurewhich solves conventional problems depending on markets, is a singleprocess and closed product based on multi-threading, and hasdifficulties in terms of external applications. In pursuit of newplatform based development, cost innovation via chipset replacement andUI application and external application development efficiency, layeringand componentization are performed to obtain a 3-layered structure andan add-on structure for an add-on, a single source product and an openapplication. Recently, modular design of a software structure has beenconducted in order to provide a web open application programminginterface (API) for an echo system and modular architecture of afunctional unit or a native open API for a game engine, and thus amulti-process structure based on a service structure has been produced.

FIG. 7 is a diagram illustrating webOS architecture according to oneembodiment of the present invention.

The architecture of a webOS platform will now be described withreference to FIG. 7.

The platform can be largely divided into a kernel, a system librarybased webOS core platform, an application, a service, etc.

The architecture of the webOS platform has a layered structure. OSs areprovided at a lowest layer, system library(s) are provided at a nexthighest layer and applications are provided at the highest layer.

First, the lowest layer is an OS layer including a Linux kernel suchthat Linux is included as an OS of the digital device.

At layers higher than the OS layer, a board support package(BSP)/hardware abstraction layer (HAL) layer, a webOS core moduleslayer, a service layer, a Luna-service bus layer and an Enyoframework/native developer's kit (NDK)/QT layer are sequentiallyprovided. At the highest layer, an application layer is provided.

Some layers of the above-described webOS layered structure can beomitted and a plurality of layers can be combined to one layer and onelayer can be divided into a plurality of layers.

The webOS core module layer can include a Luna surface manager (LSM) formanaging a surface window, etc., a system & application manager (SAM)for managing execution and performance status of applications, etc., anda web application manager (WAM) for managing web applications based onWebKit.

The LSM manages an application window displayed on a screen. The LSM cancontrol display hardware (HW) and provide a buffer for rendering contentnecessary for applications, and compose and output results of renderinga plurality of applications on a screen.

The SAM manages policy according to several conditions of systems andapplications.

The WAM is based on Enyo framework, because a webOS regards a webapplication as a basic application.

An application can use a service via a Luna-service bus. A service canbe newly registered via a bus and the application can detect and use adesired service.

The service layer can include services having various service levels,such as a TV service, a webOS service, etc. The webOS service caninclude a media server, Node.JS, etc. and, in particular, the Node.JSservice supports JavaScript, for example.

The webOS service can be communicated to a Linux process implementingfunction logic via a bus. This webOS service is largely divided intofour parts, migrates from a TV process and an existing TV to a webOS, isdeveloped as services which differ between manufacturers, webOS commonservices and JavaScripts, and is composed of the Node.js service usedvia Node.js.

The application layer can include all applications supportable by adigital device, such as a TV application, a showcase application, anative application, a web application, etc.

Applications on the webOS can be divided into a web application, a palmdevelopment kit (PDK) application, a Qt Meta Language or Qt ModelingLanguage (QML) application, etc. according to implementation methods.

The web application is based on a WebKit engine and is performed on WAMruntime. Such a web application is based on Enyo framework or can bedeveloped and performed based on general HTML5, cascading style sheets(CSS) and JavaScripts.

The PDK application includes a native application developed with C/C++based on a PDK provided for a third party or an external developer. ThePDK refers to a set of development libraries and tools provided toenable a third party to develop a native application (C/C++) such asgames. For example, the PDK application can be used to developapplications requiring high performance.

The QML application is a Qt based native application and includes basicapplications provided along with the webOS platform, such as card view,home dashboard, virtual keyboard, etc. QML is a markup language of ascript format, not C++.

The native application is an application which is developed and compiledusing C/C++ and is executed in the binary form and has an advantage suchas high execution speed.

FIG. 8 is a diagram illustrating the architecture of a webOS deviceaccording to one embodiment of the present invention.

FIG. 8 is a block diagram based on a runtime of a webOS device and isdescribed with reference to the layered structure of FIG. 7.

Hereinafter, a description will be given with reference to FIGS. 7 and8.

Referring to FIG. 8, services, applications and webOS core modules areincluded on a system OS (Linux) and system libraries and communicationtherebetween can be performed via a Luna-service bus.

Node.js services based on HTML5 such as e-mail, contact or calendar,CSS, JavaScript, etc., webOS services such as logging, backup, filenotify, database (DB), activity manager, system policy, audio daemon(AudioD), update, media server, etc., TV services such as electronicprogram guide (EPG), personal video recorder (PVR), data broadcasting,etc., CP services such as voice recognition, now on, notification,search, auto content recognition (ACR), contents list browser (CBOX),wfdd, DMR, remote application, download, Sony Philips digital interfaceformat (SDPIF), etc., native applications such as PDK applications,browsers, QML applications, a UI-related TV applications based on Enyoframework and web applications are processed via webOS core modules suchas the above-described SAM, WAM and LSM via the Luna-service bus. The TVapplications and the web applications are not necessarily based on Enyoframework or related to UI.

The CBOX can manage metadata and lists of content of external devicessuch as USB drivers, DLNA devices or Cloud servers connected to a TV.The CBOX can output content listing of various content containers suchas USB, DMS, DVR, Cloud server, etc. as an integrated view. The CBOX candisplay various types of content listings such as pictures, music orvideo and manage metadata thereof. The CBOX can output content of anattached storage in real time. For example, if a storage device such asa USB is plugged in, the CBOX should immediately output a content listof the storage device. At this time, a standardized method forprocessing the content listing can be defined. The CBOX can accommodatevarious connection protocols.

The SAM is used to improve module complexity and extensibility. Forexample, an existing system manager processes several functions such assystem UI, window management, web application runtime and UX constraintprocessing via one process and thus has high implementation complexity.In order to solve such a problem, the SAM divides main functions andclarifies an interface between functions, thereby decreasingimplementation complexity.

The LSM is supported to independently develop and integrate a system UXsuch as card view, launcher, etc. and to easily cope with change inproduct requirements. The LSM maximally uses hardware resources toenable multitasking if a plurality of application screens is composedusing an app-on-app method and can provide a window management mechanismfor 21:9 and a multi-window.

The LSM supports implementation of a system UI based on a QML andimproves development productivity. QML UX can easily configure a viewusing a screen layout and UI components based on MVC and easily developcode for processing user input. An interface between the QML and thewebOS component is achieved via a QML extensibility plug-in and graphicoperation of an application can be based on Wayland protocol,luna-service call, etc.

The LSM is an abbreviation for a Luna surface manager and functions asan application window compositor.

The LSM composes and outputs independently developed applications, UIcomponents, etc. on a screen. When components such as recentapplications, showcase applications or launcher applications renderrespective content, the LSM defines an output area, a linkage method,etc. as a compositor. The LSM functioning as a compositor performsprocessing such as graphic composition, focus management, input events,etc. At this time, the LSM receives event, focus, etc. from an inputmanager, and a remote controller, a HID such as a mouse and keyboard, ajoystick, a game pad, a remote application, a pen touch, etc. can beincluded as an input manager.

The LSM supports multiple window models and can be simultaneouslyexecuted in all applications as a system UI. The LSM can supportlauncher, recents, setting, notification, system keyboard, volume UI,search, finger gesture, voice recognition (speech to text (STT), text tospeech (TTS), natural language processing (NLP), etc.), pattern gesture(camera or mobile radio control unit (MRCU)), live menu, auto contentrecognition (ACR), etc.

FIG. 9 is a diagram illustrating a graphic composition flow in a webOSdevice according to one embodiment of the present invention.

Referring to FIG. 9, graphic composition processing can be performed viaa web application manager 910 functioning as a UI process, a WebKit 920functioning as a web process, an LSM 930 and a graphics manager (GM)940.

When the web application manager 910 generates web application basedgraphics data (or application) as a UI process, the generated graphicsdata is delivered to the LSM if the graphics data is not a fullscreenapplication. The web application manager 910 receives an applicationgenerated by the WebKit 920 in order to share a graphic processing unit(GPU) memory for graphic management between the UI process and the webprocess and delivers the application to the LSM 930 if the applicationis not a fullscreen application. If the application is a fullscreenapplication, the LSM 930 can bypass the application. In this case, theapplication is directly delivered to the graphics manager 940.

The LSM 930 transmits the received UI application to a Waylandcompositor via a Wayland surface and the Wayland compositorappropriately processes the UI application and delivers the processed UIapplication to the graphics manager. The graphics data received from theLSM 930 is delivered to the graphics manager compositor via the LSM GMsurface of the graphics manager 940, for example.

The fullscreen application is directly delivered to the graphics manager940 without passing through the LSM 930 as described above and isprocessed in the graphics manager compositor via the WAM GM surface.

The graphics manager processes and outputs all graphics data in thewebOS device and receives and outputs data passing through theabove-described LSM GM surface, data passing through a WAM GM surface,and graphics data passing through a GM surface, such as a databroadcasting application or a caption application, on a screen. Thefunction of the GM compositor is equal or similar to the above-describedcompositor.

FIG. 10 is a diagram illustrating a media server according to oneembodiment of the present invention, FIG. 11 is a block diagram of amedia server according to one embodiment of the present invention, andFIG. 12 is a diagram illustrating a relationship between a media serverand a TV service according to one embodiment of the present invention.

The media server supports execution of a variety of multimedia in adigital device and manages necessary resources. The media server canefficiently use hardware resources necessary for media play. Forexample, the media server requires audio/video hardware resources formultimedia execution and efficiently manages a resource use status toefficiently use resources. In general, a stationary device having ascreen larger than that of a mobile device requires more hardwareresources upon multimedia execution and requires high encoding/decodingrate and graphics data transfer rate due to a large amount of data. Themedia server should perform not only streaming or file playback but alsobroadcasting, recording and tuning tasks, a task for simultaneouslyviewing and recording, and a task for simultaneous displaying a senderand a recipient on a screen upon video call. It is difficult for themedia server to simultaneously perform several tasks due to restrictionin hardware resources such as an encoder, a decoder, a tuner, a displayengine, etc. in chipset units. For example, the media server restricts ause scenario or performs processing using user input.

The media server can make system stability robust, and can remove aplayback pipeline, in which errors occur during media playback, perpipeline, such that other media play is not influenced even when errorsoccur. Such a pipeline is a chain for connecting unit functions such asdecoding, analysis, output, etc. upon a media playback request, andrequired unit functions can be changed according to media type, etc.

The media server can have extensibility and can add a new type ofpipeline without influencing an existing implementation method. Forexample, the media server can accommodate a camera pipeline, a videoconference (Skype) pipeline, a third-party pipeline, etc.

The media server can process general media playback and TV taskexecution as separate services because the interface of the TV serviceis different from that of media playback. The media server supportsoperation such as “setchannel”, “channelup”, “channeldown”,“channeltuning” and “recordstart” in relation to the TV service andsupport operation such as “play”, “pause” and “stop” in relation togeneral media playback, that is, supports different operations withrespect to the TV service and general media playback and processes theTV service and media playback as separate services.

The media server can control or manage a resource management function.Hardware resource assignment or recovery in a device is conducted by themedia server. In particular, the TV service process delivers a taskwhich is being executed and a resource assignment status to the mediaserver. The media server secures resources to execute a pipelinewhenever media is executed, allows media execution due to priority(e.g., policy) upon media execution request, and performs resourcerecovery of another pipeline, based on a resource status of eachpipeline. The predefined execution priority and resource informationnecessary for a specific request are managed by a policy manager and theresource manager communicates with the policy manager to processresource assignment and recovery.

The media server can have identifiers (IDs) for all operations relatedto playback. For example, the media server can send a command to aspecific pipeline based on the ID. The media server can send respectivecommands to pipelines for playback of two or more media.

The media server is responsible for playing back a HTML5 standard media.

The media server performs a service process of a TV pipeline accordingto a TV restructuralization range. The media server can be designed andimplemented regardless of the TV restructuralization range. If theseparate service process of the TV is not performed, the TV can bewholly re-executed when errors occurs in a specific task.

The media server is also referred to as • MS, that is, a micro mediaserver. The media player is a media client and means WebKit for HTML5video tag, camera, TV, Skype or second screen, for example.

The media server mainly manages micro resources such as a resourcemanager or a policy manager. The media server also controls playback ofweb standard media content. The media server can manage pipelinecontroller resources.

The media server supports extensibility, reliability, efficient resourceusage, etc., for example.

In other words, the • MS, that is, the micro media server, manages andcontrols resource usage for appropriate processing within the webOSdevice, such as resources such as cloud game, MVPD (pay service, etc.),camera preview, second screen or Skype, and TV resources. A pipeline isused upon usage of each resource, for example, and the media server canmanage and control generation, deletion, use of a pipeline for resourcemanagement.

The pipeline can be generated when a media related to a task starts asequence of request, decoding streaming and parsing such as videooutput. For example, in association with a TV service and anapplication, watching, recording, channel tuning, etc. are controlledand performed via pipelines individually generated according to requeststhereof with respect to resource usage.

Referring to FIG. 10, a processing structure of a media server will bedescribed in detail.

In FIG. 10, an application or service is connected to a media server1020 via a Luna-service bus 1010 and the media server 1020 is connectedto and managed by pipelines generated via the Luna-service bus 1010.

The application or service includes various clients according toproperties thereof and can exchange data with the media server 1020 orthe pipeline via the clients.

The clients include a • Media client (WebKit) for connection with themedia server 1020 and a resource manager (RM) client (C/C++), forexample.

The application including the • Media client is connected to the mediaserver 1020 as described above. More specifically, the • Media clientcorresponds to the below-described video object, for example, and usesthe media server 1020, for video operation by a request, etc.

The video operation relates to a video status and can include all statusdata related to the video operation, such as loading, unloading, play(playback or reproduction), pause, stop, etc. Such video operations orstatuses can be processed by generating individual pipelines.Accordingly, the • Media client transmits status data related to thevideo operation to the pipeline manager 1022 in the media server.

The media server 1022 acquires information about resources of thecurrent device via data communication with the resource manager 1024 andrequests assignment of resources corresponding to the status data of the• Media client. At this time, the pipeline manager 1022 or the resourcemanager 1024 controls resource assignment via data communication withthe policy manager 1026 if necessary. For example, if resources to beassigned according to the request of the pipeline manager 1022 are notpresent or are lacking in the resource manager 1024, resource assignmentcan be appropriately performed according to priority comparison of thepolicy manager 1026.

The pipeline manager 1022 requests to generate a pipeline for operationaccording to the request of the • Media client from the media pipelinecontroller 102, with respect to resources assigned according to resourceassignment of the resource manager 1024.

The media pipeline controller 1028 generates a necessary pipeline undercontrol of the pipeline manager 1022. As shown, a media pipeline, acamera pipeline, a pipeline related to playback, pause or stop can begenerated. The pipeline includes pipelines for HTML5, web CP,Smarthshare playback, thumbnail extraction, NDK, cinema, multimedia andhypermedia information coding experts group (MHEG), etc.

The pipeline can include a service-based pipeline and a URI basedpipeline (media pipeline), for example.

Referring to FIG. 10, the application or service including the RM clientcan not be directly connected to the media server 1020, because theapplication or service can directly process a media. In other words, ifthe application or service directly processes a media, the media servercan not be used. At this time, for pipeline generation and usage,resource management is necessary and, at this time, a • MS connector isused. When a resource management request for direct media processing ofthe application or service is received, the • MS connector communicateswith the media server 1020 including the resource manager 1024. Themedia server 1020 also includes a • MS connector.

Accordingly, the application or service can cope with the request of theRM client via resource management of the resource manager 1024 via the •MS connector. The RM client can process services such as native CP, TVservice, second screen, flash player, You Tube media source extensions(MSE), cloud game, Skype, etc. In this case, as described above, theresource manager 1024 can manage resources via appropriate datacommunication with the policy manager 1026 if necessary for resourcemanagement.

The URI based pipeline does not directly process the media unlike theabove-RM client but processes the media via the media server 1020. TheURI based pipeline can include player factory, Gstreamer, streamingplug-in, digital rights management (DRM) plug-in pipelines.

An interface method between the application and the media services is asfollows.

An interface method using a service in a web application can be used. Inthis method, a Luna call method using a palm service bridge (PSB) and amethod of using Cordova can be used, in which a display is extended to avideo tag. In addition, a method of using HTML5 standard related to avideo tag or media element can be used.

A method of using a service in PDK can be used.

Alternatively, a method of using in existing CP can be used. Forbackward compatibility, plug-in of an existing platform can be extendedand used based on Luna.

Lastly, an interface method using a non-webOS can be used. In this case,a Luna bus can be directly called to perform interfacing.

Seamless change is processed by a separate module (e.g., TVWIN) andrefers to a process of first displaying a TV program on a screen withouta webOS before or duration webOS booting and then performing seamlessprocessing. This is used for the purpose of first providing a basicfunction of a TV service, for fast response to a power-on request of auser, because a booting time of a webOS is late. The module is a part ofa TV service process and supports seamless change for providing fastbooting and a basic TV function, factory mode, etc. The module isresponsible for switching from the non-webOS mode to the webOS mode.

FIG. 11 shows the processing structure of the media server.

In FIG. 11, a solid box denotes a process component and a dotted boxdenotes an internal processing module of the process. A solid arrowdenotes an inter-process call, that is, a Luna-service call and a dottedarrow denotes notification such as register/notify or data flow.

The service, the web application or the PDK application (hereinafter,referred to as “application”) is connected to various service processingcomponents via a Luna-service bus and is operated or controlled via theservice processing components.

A data processing path is changed according to application type. Forexample, if the application includes image data related to a camerasensor, the image data is transmitted to and processed by a cameraprocessor 1130. At this time, the camera processor 1130 includes agesture or face detection module and processes image data of thereceived application. The camera processor 1130 can generate a pipelinevia a media server processor 1110 with respect to data which requiresuse of a pipeline according to user selection or automatically andprocess the data.

Alternatively, if the application includes audio data, the audio can beprocessed via an audio processor (AudioD) 1140 and an audio module(PulseAudio) 1150. For example, the audio processor 1140 processes theaudio data received from the application and transmits the processedaudio data to the audio module 1150. At this time, the audio processor1140 can include an audio policy manager to determine processing of theaudio data. The processed audio data is processed by the audio module1160. The application or a pipeline related thereto can notify the audiomodule 1160 of data related to audio data processing. The audio module1150 includes advanced Linux sound architecture (ALSA).

Alternatively, if the application includes or processes (hereinafter,referred to as “includes”) content subjected to DRM, the content data istransmitted to a DRM service processor 1160 and the DRM serviceprocessor 1170 generates a DRM instance and processes the content datasubjected to DRM. The DRM service processor 1160 is connected to a DRMpipeline in a media pipeline via a Luna-service bus, for processing ofthe content data subjected to DRM.

Hereinafter, processing of an application including media data or TVservice data (e.g., broadcast data) will be described.

FIG. 12 shows the media server processor and the TV service processor ofFIG. 11 in detail.

Accordingly, a description will be given with reference to FIGS. 11 and12.

First, if the application includes TV service data, the application isprocessed by the TV service processor 1120/1220.

The TV service processor 1120 includes at least one of a DVR/channelmanager, a broadcast module, a TV pipeline manager, a TV resourcemanager, a data broadcast module, an audio setting module, a pathmanager, etc., for example. In FIG. 12, the TV service processor 1220can include a TV broadcast handler, a TV broadcast interface, a serviceprocessor, TV middleware (MW), a path manager and a BSP (NetCast). Theservice processor can mean a module including a TV pipeline manager, aTV resource manager, a TV policy manager, a USM connector, etc., forexample.

In the present specification, the TV service processor can have theconfiguration of FIG. 11 or FIG. 12 or a combination thereof. Somecomponents can be omitted or other components (not shown) can be added.

The TV service processor 1120/1220 transmits DVR or channel related datato a DVR/channel manager and transmits the DVR or channel related datato the TV pipeline manager to generate and process a TV pipeline, basedon attribute or type of the TV service data received from theapplication. If the attribute or type of the TV service data isbroadcast content data, the TV service processor 1120 generates andprocesses a TV pipeline via the TV pipeline manager, for processing ofthe data via a broadcast module.

Alternatively, a JavaScript standard object notation (json) file or afile written in c is processed by the TV broadcast handler andtransmitted to the TV pipeline manager via a TV broadcast interface togenerate and process a TV pipeline. In this case, the TV broadcastinterface can transmit the data or file passing through the TV broadcasthandler to the TV pipeline manager based on TV service policy and referto the data or file upon generating a pipeline.

The TV pipeline manager generates one or more pipelines according to arequest for generation of a TV pipeline from the processing module ormanager of the TV service processor, under control of the TV resourcemanager. The TV resource manager can be controlled by the TV policymanager, in order to request a resource assignment status for a TVservice according to a request for generation of a TV pipeline of the TVpipeline manager, and can perform data communication with the mediaserver processor 1110/1210 via a • MS connector. The resource manager inthe media server processor 1110/1210 sends the resource assignmentstatus for the TV service according to the request of the TV resourcemanager. For example, if the resource manager in the media serverprocessor 1110/1210 determines that the resources for the TV service arealready assigned, the TV resource manager can be notified thatassignment of all resources is completed. At this time, the resourcemanager in the media server processor can remove a predetermined TVpipeline according to a predetermined criterion or priority of TVpipelines already assigned for the TV service along with notificationand request generation of a TV pipeline for the requested TV service.Alternatively, the TV resource manager can appropriately remove a TVpipeline or can add or newly establish a TV pipeline according to astatus report of the resource manager in the media server processor1110/1210.

The BSP supports backward compatibility with an existing digital device.

The generated TV pipelines can appropriately operate under control ofthe path manager in the processing procedure. The path manager candetermine or control the processing path or procedure of the pipelinesin consideration of the TV pipeline in the processing procedure and theoperation of the pipelines generated by the media server processor1110/1210.

Next, if the application includes media data, not TV service data, theapplication is processed by the media server processor 1110/1210. Themedia server processor 1110/1210 includes a resource manager, a policymanager, a media pipeline manager, a media pipeline controller, etc. Aspipelines generated under control of the media pipeline manager and themedia pipeline controller, a camera preview pipeline, a cloud gamepipeline, a media pipeline, etc. can be generated. The media pipelinecan include streaming protocol, auto/static gstreamer, DRM, etc. and theprocessing flow thereof can be determined under control of the pathmanager. For a detailed description of the processing procedure of themedia server processor 1110/1210, refer to the description of FIG. 10and a repeated description will be omitted. In the presentspecification, the resource manager in the media server processor1110/1210 can perform resource management to a counter base, forexample.

Hereinafter, various embodiments of a digital device for processing ascreensaver according to the present invention will be described ingreater detail with reference to the accompanying drawings.

In the digital device, the screensaver is used to solve a screen burn-inof a panel and can be executed according to a request or setting via ahot key of an input device such as a remote controller or according toan energy mode set by a user via a setting menu of the device.

A digital device according to the present invention can provide anadaptive screensaver to provide user convenience in consideration ofexecution or multitasking status of services or applications, an overallstatus of the device or device use intention or status of a user, inaddition to solution of a screen burn-in.

The screensaver can be related to power control of the device. Recently,although battery capacity of a mobile device has increased and powercontrol technology of a mobile or fixed device has been developed, apower control issue of the device still occurs with high end or highoutput of services or applications of the device. The present inventionconsiders power saving technology via power control via a screensaver inaddition to the above description. In other words, a screensaverprocessing method according to the present invention can save power of adevice.

FIG. 13 is a diagram illustrating a screensaver launching conditionaccording to one embodiment of the present invention.

The screensaver can be differently processed depending on whether or nota service or application executed on a device includes video.

If a service or application including video is executed on a device,there are a full-video status and a picture in graphic (PIG) videostatus.

The former status, that is, the full-video status includes a status inwhich video is executed on a full screen, that is, a reproduction statusor a playback status, and a status in which a still image is displayedon a full screen, or an idle status, that is, a pause or stop status, ofa video on a full screen. In the former status, that is, in thefull-video playback status, the screen can not be switched to ascreensaver but, in the latter status, that is, the pause or stopstatus, the screen can be switched to a fullscreen screensaver.

The latter status, that is, the PIG status, includes a status in whichvideo is executed in a PIP area, that is, a playback status, and astatus in which a still image is displayed in a PIP area or an idlestatus, that is, a pause or stop status. If video is played back in aPIG status, unlike the above-described full-video screen, the screen canbe switched to a PIG screensaver. If a video is not played back in thePIG status, that is, in the pause or stop status, the screen can beswitched to a PIG screensaver or a fullscreen screensaver.

In addition, timeout can be applied to a video status or a UI for thevideo if the UI is a system UI or native application but can not beapplied to the video status or the UI for the video if the UI is a CP orthird-party application. Timeout is one of reference data for ascreensaver operation and a detailed description thereof will be givenbelow.

If only the UI is output on the screen without the video, thescreensaver can be switched to a fullscreen screensaver.

The above description relates to screensaver entrance related toexecution, operation or processing of the screensaver in the digitaldevice. Next, screensaver leaving or releasing will be described. In thepresent specification, entrance is equal or similar to execution andleaving can mean execution end, execution cancellation, and executionrelease.

After entering a screensaver or a screensaver function, if externalinput is received via a mouse, a keyboard, a local key,HDMI/RGB/composite/component/USB, etc., if a signal such as a reservedrecording time start signal, a voice command, a gesture command signal,etc. is received or if an input device responds, the screensaver can bereleased. The screensaver can be released upon emergency call.

FIG. 14 is a diagram illustrating an operation structure of ascreensaver according to one embodiment of the present invention.

Referring to FIG. 14, in the present invention, a webOS basedapplication can execute a screensaver or perform a screensaver functionat an uppermost level, for example. That is, a screensaver applicationis located at an upper layer or a top layer higher than a system UI or acard application, such as alert or alarm or toast popup.

Since the screensaver is released by stopping execution of anapplication operating at the uppermost level, a foreground or backgroundservice or application which has been executed before switching to thescreensaver is not influenced.

FIG. 15 is a diagram illustrating fullscreen screensaver and PIGscreensaver operation screens according to one embodiment of the presentinvention.

Referring to FIG. 15, according to switching to a screensaver, thedigital device turns a screen off (black screen) while maintaining soundor displays “graphic+screensaver” (not shown) on a screen, such that auser confirms switching to the screensaver. In addition, the digitaldevice displays a left time as a counter before switching to the screenserver according to user's intention, thereby preventing a screensaverfunction from being unintentionally performed.

Hereinafter, various embodiments of the present invention related to adetailed method or scenario for processing a screensaver will bedescribed in detail with reference to the accompanying drawings.

FIG. 16 is a block diagram illustrating a screensaver processing methodaccording to one embodiment of the present invention.

FIG. 16 shows the configuration of the screensaver processing methodaccording to one embodiment of the present invention.

Here, FIG. 16 relates to a voting scenario as a screensaver processingmethod according to the present invention.

For example, referring to FIG. 16, an application 1610 including a videoobject 1615 registers a voter related to screensaver processing with acontroller 1620 upon execution thereof. At this time, the controller1620 can be hardware or software, which can be implemented by a servicedaemon. In addition, the video object can include NPAPI, video tag, DNK,Netflix, Vudu, HBBTV, etc.

The controller 1620 can perform screensaver processing via a screensaverapplication 1630 if application registration is performed.

In the above process, the screensaver application 1630 uses informationon a current screen status of the device, for screensaver processingunder control of the controller 1620. The screensaver application 1630transmits an application programming interface (API) “getScreenStatus”to a display manager 1640.

The display manager 1640 functions as a display renderer and receivessize data of a video object upon connection with the video object 1615of the application 1610 and responds to the API “getScreenStatus” of thescreensaver application 1630.

The video object 1615 of the application transmits current status dataof the video object to a media server 1650. The transmitted status datacan indicate play/pause of the video object.

The media server 1650 generates a pipeline based on the status data whenthe status data is received from the video object 1615.

The media server 1650 sends the status (format) data of the video object1615 to the display manager 1640 simultaneously with or independently ofgeneration of the pipeline.

At this time, the display manager 1640 combines the status (format) dataof the video object received from the media server 1650 with the sizedata and responds to the API “getScreenStatus” of the screensaverapplication 1630.

In summary, the application 1610 registers a voter with the controller1620 and the screensaver application 1630 receives response data to theAPI “getScreenStatus” from the display manager 1640. The controller 1620controls the screensaver application 1630 after registration of thevoter of the application 1610 and transmits a control command forfunction execution, thereby launching a screensaver function.

FIG. 17 is a diagram illustrating a video object related to screensaverprocessing according to one embodiment of the present invention.

FIG. 17 shows a video object related to screensaver processing of FIG.16.

Referring to FIG. 17, the video object can be largely divided intoWebKit, NDK, native application and live broadcast based on runtime.

First, in association with WebKit runtime, the video object can belargely divided into object types such as video tag, NPAPI plug-in andprivate.

The video object belonging to a video tag type can include TV video tag,DVR watch video tag, external input video tag, media video tag andextended media video tag, etc. Each video object can be based on RF orURI and can have input stacks such as a TV service or a media serveraccording to video object.

The video object belonging to the NPAPI plug-in can include mediaplug-in, broadcast plug-in, etc. This video object can be based on RF orURI and can have input stacks such as a TV service or a media server.

The video object belonging to private can include You Tube MSE/EME, etc.This video object can be based on a memory and can have an input stacksuch as LibmediaAPI.so.

Next, the video object belonging to NDK runtime can include NDL media,NC API, etc. This video object can be based on URI and can have an inputstack such as media server.

The object types of native application and live broadcast runtime areprivate and the video object belonging thereto can include Chormium,Netflix, Vudu, media plug-in for data broadcast, broadcast plug-in fordata broadcast, etc. These video objects can be based on URI, memory andRF and can have input stacks such as media server, TV service,LibmediaAPI.so, etc.

FIG. 18 is a block diagram showing the configuration of the screensaverprocessing method of FIG. 16.

When an application 1810 receives external input, that is, a request forplaying back a media on a full screen (resume_media), a video object1815 registers a screensaver request with a controller 1820. Suchregistration can be performed when video is generated by a video object1815, for example.

The controller 1820 determines whether registration is included in anexisting screensaver processing related list and determines whether arequest to enter the screensaver is received from a service interface1830.

Here, the service interface 1830 transmits the request to enter thescreensaver to the controller 1820, depending on whether “No operation”data according to timeout is received from an LSM 1860 which is a windowmanager of the device. For example, when “No operation” data accordingto timeout is received from the LSM 1860, the service interface 1830transmits the request to enter the screensaver to the controller 1820.

The controller 1820 attempts to enter the screensaver according to therequest of the service interface 1830 according to a voting method,unlike a conventional method. That is, the controller 1820 sends asplash screen entering request to the video object or application, forentering the screensaver, when the request to go to the screensaver isreceived from the service interface 1830.

The video object or application responds to the screensaver request ofthe controller 1820 and the response can be one of “ack” or “nack”.“ack” means that the device is allowed to enter the screensaver (true)and “nack” means that the device is not allowed to enter screensaver.

Although only single application is assumed in the presentspecification, in the voting method according to the present invention,if one or more applications are present, an unanimity method is used forvoting, that is, for a voting response to the request of the controller1820. In other words, if a plurality of applications is present, allapplications should transmit the same response. For example, in order toenter the screensaver, the responses of all applications should be“ack”. However, if only one application transmits a response “nack”, thecontroller 1820 can not transmit the request to enter the screensaver tothe screensaver application 1840.

Alternatively, priority can be assigned to the responses of a pluralityof applications and the controller 1820 can determine whether to enterthe screensaver according to the response of an application having highpriority if the responses of the applications are different. If theresponses of the applications having the same priority are different,the controller 1820 can determine whether to enter the screensaveraccording to majority voting and can arbitrarily determine whether toenter the screensaver if majority voting is difficult. The controller1820 can not transmit the request to go to the screensaver as a defaultif it is difficult to make a determination.

The controller 1820 requests that the screensaver application 1840launch a screensaver application if it is determined that all theresponses of the video object 1815 are “ack”.

When the launch command is received from the controller 1820, thescreensaver application 1840 sends the API “getScreenStatus” to thedisplay manager 1850 and requests a video size. When the API isreceived, the display manager 1850 combines data, such as video size,location and video status, received from the video object and respondsto the API. The application or video object can transmit the video size,the pipeline status, etc., which are generated simultaneously with orbefore the request of the controller 1820, to the display manager 1850.The pipeline status can include play, pause, delayed load, etc., forexample. In addition, although not shown, the pipeline status can bechecked via the media server.

The screensaver application 1840 executes the screensaver upon receivingthe response to the API from the display manager 1850. Here, thescreensaver application 180 can first check whether PIG video is presentvia the display manager 1850 before execution of the screensaver. Thescreensaver can be executed according to the checked result as follows.If video is not present or if only a UI is present, a fullscreenscreensaver is executed and, if the video is PIG video, a PIGscreensaver is executed. In the PIG screensaver, only a PIG area (PIGvideo size) is punched and the PIG screensaver is executed as shown inFIG. 15 b. That is, the remaining area is displayed in the form of abanner or in gray.

FIG. 19 is a diagram illustrating the configuration of the screensaverprocessing method according to one embodiment of the present invention.

The case in which one application is present has been described above.The digital device according to the present invention enablesmultitasking based on a webOS and a screensaver function can besupported even in a multitasking environment. For example, even in anapp-on-app status of the multitasking environment, screensaverprocessing is required. That is, FIG. 19 shows an extension or adetailed configuration of screensaver processing in a digital deviceemploying a voting method.

Referring to FIG. 19, two (plural) applications are shown. Theseapplications will be defined as follows.

An application 1910 has a video object 1915, that is, a video playbackscenario, like the application 1610 of FIG. 16. The application 1910means an application supported by a platform, for example.

An application 1920 means an application which is not described withreference to FIG. 16, which does not have a video playback scenario butrequires a determination as to whether to enter the screensaver. Theapplication 1920 can include an application having a photo slide showscenario or an electronic picture frame application.

FIGS. 16 and 19 are similar to each other in terms of screensaverentrance.

For example, the video object 1915 is registered with a controller 1930as a voter when video is generated. The controller 1930 determineswhether the video object or the application is present in an existingvoter list. At this time, the controller 1930 can not transmit a votingrequest for determining whether to enter the screensaver to theapplication or the video object, if it is determined that theapplication or the video object which is not included in the voter listis registered.

The application 1920 is registered with the controller 1930 as a voterat a desired time, for example, an application execution time.Similarly, the controller 1930 determines whether the application isincluded in the voter list as a voter and performs processing accordingto the determined result.

The controller 1930 ends registration of the applications as the votersand checks whether a request to enter (go to) the screen server isreceived from an interface 1960.

The interface 1960 registers no operation timeout with an LSM 1970 andtransmits a request to go to the screensaver to the controller 1930 whentimeout is received from the LSM 1970. No operation timeout means a timewhen the LSM which is the window manager does not receive input to thedevice. For example, the digital device sets no operation timeout to 2minutes in the LSM 1970 and returns timeout, that is, a no-operationstatus, to the interface 1960 if no (valid) input is received for 2minutes. The controller 1930 controls screensaver operation if therequest to go to the screensaver is received from the interface 1960while the device is in an active state, that is, while the device isactivated.

The controller 1930 transmits a request to ask whether to enter thescreen server to the registered applications or the video objects andreceives votes, that is, responses or confirmations, from theapplications.

As described above, the controller 1930 finally determines whether to goto the screensaver based on the responses or confirmations. Such adetermination is unanimously made. That is, only if the confirmations ofthe applications are all “ack”, screensaver entrance is attempted.

In contrast, if “nack” is received from only one application, thecontroller 1930 can defer screensaver entrance.

The controller 1930 switches from the active status to the screensaverstatus when “ack” is received from all the applications as the votingresult. Simultaneously, the controller 1930 transmits a launch commandto the screensaver application 1940.

The screensaver application 1940 is executed according to thetransmitted launch command and transmits the API “getScreenStatus to thedisplay manager 1950, which has received the video size, location,status data, etc. from the applications or the video objects, andreceives a response thereto.

The screensaver application 1940 requests that the LSM 1970 shouldgenerate an overlay window for fullscreen screensaver or PIG screensaveroperation based on the response of the display manager 1950 and outputsthe screensaver at an uppermost level.

Therefore, the fullscreen or PIG screensaver operates on the screen ofthe display.

Thereafter, releasing the screensaver is determined by the controller1930.

At this time, the controller 1930 can determine whether the screensaveris released using various factors.

The factors can include reception of certain input on a screen via theLSM 1970, a not watch service 1982, a physical device manager (PDM)1984, an external input manager (EIM) 1986, etc.

First, the screensaver releasing factor received via the LSM 1970includes key input of a user via a remote controller, pointer motion,etc., for example.

The screensaver releasing factor via the not watch service 1982 includesthe case in which a user does not concentrate on a display screen, doesnot view the display screen, leaves the display screen or performsanother operation via an eye-tracking sensor, a gesture sensor, a camerasensor, etc. The data of the camera sensor or the eye-tracking sensorcan be further considered. In some cases, the factor of the LSM 1970 andthe factor of the not watch service 1982 can overlap.

The PDM factor 1984 provides a service for a physical device. The PDMwhich is a module for managing a device includes a module for detectinghot plug-in of a USB device, managing a physical device connected to asystem and providing a file system service for a storage device and aservice for a USB device. The PDM module can include a USB memory, aCAM, a HID, an XPAD, a HDD, etc. Such a PDM factor can include factorsother than the below-described EIM factor, for example.

The EIM factor 1986 includes a service for detecting hot plug-in for anexternal input device and providing device information to anapplication.

The controller 1930 can release execution of the screensaver based on atleast one of the above factors. In this case, the controller 1930switches from the screensaver status to the active status, transmits anAPI “closeAppID” to the screensaver application 1940, and requests tostop execution of the screensaver application. Execution of thescreensaver at the uppermost layer is stopped according to reception ofthe API.

The controller 1930 can collect data related to screensaver releasing inthe LSM 1970, the not watch service 1982, the PDM module 1984 and theEIM module 1986 using a polling method and receive the data from themodules when an event occurs.

Although not shown in FIGS. 16 to 19, applications which do notparticipate in voting can be displayed or executed on the screen alongwith the applications which participate in voting. The application(s)which do not participate in voting or the applications which participatein voting but are not included in the voting list in the controller 1930can be ignored in terms of screensaver operation. That is, the digitaldevice can ignore execution or voting of such applications in operationof the screensaver or arbitrarily determine screensaver operations ofsuch applications.

FIG. 20 is a flowchart illustrating a screensaver processing methodaccording to one embodiment of the present invention.

According to the present invention, a method of controlling a digitaldevice includes receiving, by a controller, a first signal from a firstapplication requesting registration as an application votertransmitting, by the controller, a second signal requesting aconfirmation related to execute a second application to the firstapplication when first status data is received from a service interfacereceiving, by the controller, a response to the second signal from thefirst application and executing, by the controller, the secondapplication to enter a screensaver mode based on the received response.

The first application includes at least one of an application includingvideo data and an application not including video data, and wherein thesecond application is an application dedicated to the screensaver mode.The method further comprises generating, by the controller, a videoobject when the first application is an application including the videodata. The first signal is received from the application when video datais generated or when the video object is generated. The method furthercomprises determining, by the controller, whether or not the firstapplication or the generated object is in a list related to theregistration which is prestored in a memory and reserving or rejectingthe registration when the first application or the generated object isnot included in the list. The first status data is generated by atimeout status in which any input to the digital device is not receivedduring a predetermined time. The method further comprises receiving, bythe controller, second status data for the corresponding video data fromthe generated video object when the received response is received. Thesecond status data for the corresponding video data includes at leastone of a size of the outputted video data, an area or a location of theoutputted video data, and video status data, the video status dataincluding information indicating a reproduction or stop of the videodata. The second application is only executed when the received secondsignal includes a signal of acking. The step of executing the secondapplication includes launching, by the controller, the secondapplication and executing, by the controller, the second application atan uppermost layer on a screen via the launched second application. Thesecond application determines any one of a fullscreen and a picture ingraphic (PIG) to execute the screensaver mode. The method furthercomprises receiving, by the controller, a third signal requesting torelease execution of the second application and transmitting, by thecontroller, a control command in response to the received third signalto the second application. The third signal includes at least one ofuser input for releasing a timeout status corresponding to the firststatus data, an external input manager (EIM) signal, a physical devicemanager (PDM) signal, and a not watch service signal. The firstapplication transmits the first signal when the first application islocated in a foreground, and wherein the first application does nottransmit the first signal when the first application is located in abackground.

The digital device launches one or more applications (S2002) and thelaunched application(s) create video objects (S2004). The created videoobjects register voters with the controller (S2012). At this time, theapplications can include an application which does not include video.The application which does not include video can bypass step S2004.

If the application goes to a background (S2006), the video objectsunregister the voters (S2008) and, if the application returns to aforeground (S2010), the applications register the voters with thecontroller (S2012).

In other words, as in step S2006, when the application goes to thebackground, registration of the voter of step S2012 can be released orthe voter can be unregistered. At this time, when the application goesto the foreground, the voter can not be released, because only theapplication in the foreground determines voting. If the application goesto the background, “ack” is always transmitted as a response to therequest to go to the screensaver, because the foreground application cancoincide with priority or user's intention rather than the backgroundapplication in terms of screen saving entrance.

A determination as to whether no operation (NOP) timeout occurs is madevia the LSM (S2014). If timeout occurs, the interface requests to go tothe screensaver from the controller and the controller requests votingfor going to the screensaver from each application according to theabove request (S2016).

After step S2016, the video object checks the video location, size andvideo status, etc. and responds to the voting request (S2018).

If the response of step S2018 is “nack”, a determination as to whethertimeout (NOP) occurs is made again. If the response of step S2018 is“ack”, a determination as to whether the responses of all applicationsregistered as the voter are “ack” is made (S2020). At this time, if theresponses of all applications are not “ack”, the method returns to stepS2014. If the responses of all applications are “ack” in step S2020, thecontroller switches from the active mode to the screensaver mode(S2022). At this time, the controller requests launching of thescreensaver application simultaneously with step S2022.

If the screensaver application is launched (S2024), the screensaver isexecuted on the screen.

Thereafter, the controller determines whether execution of thescreensaver is released and switches from the screensaver mode to theactive mode (S2028) if the NOP status is released (S2026). Thereafter,the controller requests to close the screensaver from the screensaverapplication and the screensaver application closes the screensaver,which is being executed at an uppermost layer, is close according to therequest (S2030).

Thereafter, if a request to stop execution of the application isreceived, the already created video object is destroyed (S2032) and thevoter is unregistered (S2034). As described above, the application whichdoes not include the video object can bypass steps S2032 and S2034.

The screensaver processing method in the controller 1820 based on thevoting screen of one or more applications has been described above.

Hereinafter, as another embodiment, the screensaver can not be processedbased on communication (request and response) between the controller andthe application according to the voting scenario but a determination asto whether to go to the screensaver is made by the service. In thepresent invention, this is referred to as a service scenario. Theservice used herein has a meaning different from that of a generalservice. For example, the service can mean a processor including a mediaserver, a display manager and/or a controller, that is, a hardwareconfiguration or a process executed thereby. Accordingly, for betterunderstanding of the present invention and convenience of description,assume that the service includes a media server, a display manager, acontroller, etc.

The present invention is similar to the above description in terms ofreleasing or completion of the screensaver and thus a repeateddescription will be omitted.

The digital device executes the screensaver in order to save the powerof the device, competitively applies the voting scenario and the servicescenario and executes the screensaver at the uppermost layer of thescreen of the device when going to the screensaver according to any onescenario. The screensaver competitively executed according to thescenario ends if interruption or event for ending the screensaveroccurs.

Although not shown in the present specification, interruption or eventfor ending execution of the screensaver aims at minimizing inconvenienceof a user upon viewing the device in addition to power saving and thusexecution of the screensaver can not end if an event which is notrelated to the purpose of the screensaver, that is, an event forproviding any information to the user, occurs in the device. Forexample, while the screensaver is executed, downloading of video, audio,images, etc. requested before execution of the screensaver is finished,the device can display a toast popup message on a screen. At this time,since the device only provides information to the user, execution of thescreensaver can not end. Even when the screensaver is executed, a popupmessage or OSD image for providing a device operation result or anyinformation to the user can be provided during a predetermined timeuntil execution of the screensaver ends. Accordingly, the user candetermine whether execution of the screensaver ends according to theabove information during execution of the screensaver. If the deviceprovides a plurality of data, such as popup messages, to the user, thedevice can provide the data on the screen so as not to overlap eachother. If the number of data is equal to or greater than a predeterminednumber, in order to enable the user to easily identify the data, audiocan be provided while the data is displayed on the screen. Audio can beprovided even when the number of messages is only one.

According to one of the various embodiments of the present invention, itis possible to provide an adaptive screensaver control or processingmethod in consideration of the status of a service or application of adigital device. It is possible to provide an adaptive screensavercontrol or processing method if the digital device supportsmultitasking. By adaptively processing the screensaver according to thestatus of the digital device based on user's intention or for powersaving, it is possible to increase user convenience or improve productsatisfaction.

The digital device and the content processing method of the digitaldevice according to the foregoing embodiments are not restricted to theembodiments set forth herein. Therefore, variations and combinations ofthe exemplary embodiments set forth herein can fall within the scope ofthe present invention.

The method for operating the digital device according to the foregoingembodiments can be implemented as code that can be written to acomputer-readable recording medium and can thus be read by a processor.The computer-readable recording medium can be any type of recordingdevice in which data can be stored in a computer-readable manner.Examples of the computer-readable recording medium include a ROM, a RAM,a CD-ROM, a magnetic tape, a floppy disk, optical data storage, and acarrier wave (e.g., data transmission over the Internet). Thecomputer-readable recording medium can be distributed over a pluralityof computer systems connected to a network so that computer-readablecode is written thereto and executed therefrom in a decentralizedmanner. Functional programs, code, and code segments to realize theembodiments herein can be construed by one of ordinary skill in the art

Although the preferred embodiments of the present invention have beendisclosed for illustrative purposes, those skilled in the art willappreciate that various modifications, additions and substitutions arepossible, without departing from the scope and spirit of the inventionas disclosed in the accompanying claims.

What is claimed is:
 1. A method of controlling a digital device, themethod comprising: receiving, by a controller, a first signal from afirst application requesting registration as an application voter;transmitting, by the controller, a second signal requesting aconfirmation related to execute a second application to the firstapplication when first status data is received from a service interface;receiving, by the controller, a response to the second signal from thefirst application; and executing, by the controller, the secondapplication to enter a screensaver mode based on the received response.2. The method of claim 1, wherein the first application includes atleast one of an application including video data and an application notincluding video data, and wherein the second application is anapplication dedicated to the screensaver mode.
 3. The method of claim 1further comprises: generating, by the controller, a video object whenthe first application is an application including the video data.
 4. Themethod of claim 3, wherein the first signal is received from theapplication when video data is generated or when the video object isgenerated.
 5. The method of claim 3, further comprising: determining, bythe controller, whether or not the first application or the generatedobject is in a list related to the registration which is prestored in amemory; and reserving or rejecting the registration when the firstapplication or the generated object is not included in the list.
 6. Themethod of claim 1, wherein the first status data is generated by atimeout status in which any input to the digital device is not receivedduring a predetermined time.
 7. The method of claim 3 further comprisesreceiving, by the controller, second status data for the correspondingvideo data from the generated video object when the received response isreceived.
 8. The method of claim 7, wherein the second status data forthe corresponding video data includes at least one of a size of theoutputted video data, an area or a location of the outputted video data,and video status data, the video status data including informationindicating a reproduction or stop of the video data.
 9. The method ofclaim 1, wherein the second application is only executed when thereceived second signal includes a signal of acking.
 10. The method ofclaim 1, wherein the step of executing the second application includes:launching, by the controller, the second application; and executing, bythe controller, the second application at an uppermost layer on a screenvia the launched second application.
 11. The method of claim 10, whereinthe second application determines any one of a fullscreen and a picturein graphic (PIG) to execute the screensaver mode.
 12. The method ofclaim 1 further comprising: receiving, by the controller, a third signalrequesting to release execution of the second application; andtransmitting, by the controller, a control command in response to thereceived third signal to the second application.
 13. The method of claim12, wherein the third signal includes at least one of user input forreleasing a timeout status corresponding to the first status data, anexternal input manager (EIM) signal, a physical device manager (PDM)signal, and a not watch service signal.
 14. The method of claim 1,wherein the first application transmits the first signal when the firstapplication is located in a foreground, and wherein the firstapplication does not transmit the first signal when the firstapplication is located in a background.
 15. A digital device comprising:a manager to manage a display window of the digital device and togenerate and to transmit a plurality of status data of the digitaldevice to a controller; and the controller to receive a first signalfrom a first application requesting registration as an applicationvoter, to transmit a second signal requesting a confirmation related toexecute a second application to the first application when first statusdata is received from a service interface, to receive a response to thesecond signal from the first application, and to execute the secondapplication to enter a screensaver mode based on the received response.16. The digital device of claim 15, wherein the first applicationincludes at least one of an application including video data and anapplication not including video data, and wherein the second applicationis an application dedicated to the screensaver mode.
 17. The digitaldevice of claim 16, wherein the controller generates a video object whenthe first application is an application including the video data. 18.The digital device of claim 15, wherein the first signal is receivedfrom the application when video data is generated or when the videoobject is generated.
 19. The digital device of claim 15, wherein thecontroller determines whether or not the first application or thegenerated object is in a list related to the registration which isprestored in a memory and reserve or reject the registration when thefirst application or the generated object is not included in the list.20. The digital device of claim 15, wherein the first status data isgenerated by a timeout status in which any input to the digital deviceis not received during a predetermined time.
 21. The digital device ofclaim 15, wherein the controller receives second status data for thecorresponding video data from the generated video object when thereceived response is received.
 22. The digital device of claim 21,wherein the second status data for the corresponding video data includesat least one of a size of the outputted video data, an area or alocation of the outputted video data, and video status data, the videostatus data including information indicating a reproduction or stop ofthe video data.
 23. The digital device of claim 18, wherein thecontroller only executes the second application when the received secondsignal includes a signal of acking.
 24. The digital device of claim 18,wherein the controller launches the second application and executes thesecond application at an uppermost layer on a screen via the launchedsecond application.
 25. The digital device of claim 21, wherein thesecond application determines any one of a fullscreen and a picture ingraphic (PIG) to execute the screensaver mode.
 26. The digital device ofclaim 18, wherein the controller receives a third signal requesting torelease execution of the second application and transmits a controlcommand in response to the received third signal to the secondapplication.
 27. The digital device of claim 26, wherein the thirdsignal includes at least one of user input for releasing a timeoutstatus corresponding to the first status data, an external input manager(EIM) signal, a physical device manager (PDM) signal, and a not watchservice signal.
 28. The digital device of claim 18, wherein the firstapplication transmits the first signal when the application is locatedin a foreground, and wherein the first application does not transmit thefirst signal when the first application is located in a background.